Acronym ..., 5Y4-4T-6P3-tri-2-hel Name trat-elongated 10Y4-8T-2-hel ` ©` Pattern(fundamental domain of non-prismatic layers) ``` u Vertices: /|\ u = vertices within lower trat plane / c \ o = vertices within upper trat plane a'_o_ b /_d/N\d_\ Edges: u--/-a-\--u a = {4}-inc. trat-edges / a' = P3-separated from a-edge of next layer |\b N a'/| b = not {4}-inc. trat-edges c/b N a'\c c = {4}-inc. lace-edges o-_--a--_-o d = not {4}-inc. lace-edges \ d\N/d / a' u b Prism layers: \ | / N = betw. T and Y4 \c/ Y = betw. Y4 and Y4 o T = betw. T and T ``` Confer related CRF honeycombs: 10Y4-8T-2-hel (r/l)   5Y4-4T-6P3-tri-0   5Y4-4T-6P3-tri-1-alt   5Y4-4T-6P3-tri-1-hel (r/l)   5Y4-4T-6P3-tri-2-alt   5Y4-4T-6P3-tri-3 Externallinks

This scaliform honeycomb is derived from 10Y4-8T-2-hel by introducing elongating layers of trip at the parallel trat sections.

Further it occurs as gyration within the parallel trip layers of 5Y4-4T-6P3-tri-0 in steps of 2×60° using the 3-periodic helical staggering mode.

Incidence matrix

```(N→∞)

2N |  2  2  2 1  2 1 |  3  3  3  3  3 2  4 2 |  4  5  6
---+-----------------+-----------------------+---------
2 | 2N  *  * *  * * |  1  1  0  0  1 1  1 0 |  1  2  2  a  inc. to skew {4}
2 |  * 2N  * *  * * |  1  1  1  0  0 0  1 0 |  1  1  2  a' not inc. to skew {4}
2 |  *  * 2N *  * * |  1  1  0  1  0 0  0 1 |  1  1  2  b
2 |  *  *  * N  * * |  0  0  2  2  0 2  0 0 |  2  4  0  c
2 |  *  *  * * 2N * |  0  0  1  1  2 0  0 0 |  2  2  0  d
2 |  *  *  * *  * N |  0  0  0  0  0 0  4 2 |  0  0  6  e  prism-lacing
---+-----------------+-----------------------+---------
3 |  1  1  1 0  0 0 | 2N  *  *  *  * *  * * |  1  0  1  aa'b-T
3 |  1  1  1 0  0 0 |  * 2N  *  *  * *  * * |  0  1  1  aa'b-Y
3 |  0  1  0 1  1 0 |  *  * 2N  *  * *  * * |  1  1  0  a'cd
3 |  0  0  1 1  1 0 |  *  *  * 2N  * *  * * |  1  1  0  bcd
3 |  1  0  0 0  2 0 |  *  *  *  * 2N *  * * |  1  1  0  add
4 |  2  0  0 2  0 0 |  *  *  *  *  * N  * * |  0  2  0  acac
4 |  1  1  0 0  0 2 |  *  *  *  *  * * 2N * |  0  0  2  aea'e
4 |  0  0  2 0  0 2 |  *  *  *  *  * *  * N |  0  0  2  bebe
---+-----------------+-----------------------+---------
4 |  1  1  1 1  2 0 |  1  0  1  1  1 0  0 0 | 2N  *  *  tet
5 |  2  1  1 2  2 0 |  0  1  1  1  1 1  0 0 |  * 2N  *  squippy
6 |  2  2  2 0  0 3 |  1  1  0  0  0 0  2 1 |  *  * 2N  trip-N
```