A223347 - cp's OEIS frontend

A223347 3 X 3 X 3 triangular graph without horizontal edges coloring a rectangular array: number of n X 3 0..5 arrays where 0..5 label nodes of a graph with edges 0,1 0,2 1,3 1,4 2,4 2,5 and every array movement to a horizontal or vertical neighbor moves along an edge of this graph.

n	a(n)
1	28
2	236
3	2280
4	20836
5	202264
6	1851020
7	17970056
8	164457412
9	1596586328
10	14611562156
11	141852049992
12	1298194798372
13	12603142057880
14	115340831992268
15	1119752515193608
16	10247697449986948
17	99486754138704856
18	910478112673392620

[28, 236, 2280, 20836, 202264, 1851020, 17970056, 164457412, 1596586328, 14611562156, 141852049992, 1298194798372, 12603142057880, 115340831992268, 1119752515193608, 10247697449986948, 99486754138704856, 910478112673392620]

cp's OEIS Frontend

A223347 3 X 3 X 3 triangular graph without horizontal edges coloring a rectangular array: number of n X 3 0..5 arrays where 0..5 label nodes of a graph with edges 0,1 0,2 1,3 1,4 2,4 2,5 and every array movement to a horizontal or vertical neighbor moves along an edge of this graph.

Table of values

List of values