A263366 - cp's OEIS frontend

A263366 Number of (n+1) X (1+1) 0..2 arrays with each row and column divisible by 7, read as a base-3 number with top and left being the most significant digits.

n	a(n)
1	1
2	1
3	2
4	5
5	10
6	19
7	37
8	73
9	146
10	293
11	586
12	1171
13	2341
14	4681
15	9362
16	18725
17	37450
18	74899
19	149797
20	299593
21	599186
22	1198373
23	2396746
24	4793491
25	9586981
26	19173961
27	38347922
28	76695845
29	153391690
30	306783379
31	613566757
32	1227133513
33	2454267026
34	4908534053

[1, 1, 2, 5, 10, 19, 37, 73, 146, 293, 586, 1171, 2341, 4681, 9362, 18725, 37450, 74899, 149797, 299593, 599186, 1198373, 2396746, 4793491, 9586981, 19173961, 38347922, 76695845, 153391690, 306783379, 613566757, 1227133513, 2454267026, 4908534053]

cp's OEIS Frontend

A263366 Number of (n+1) X (1+1) 0..2 arrays with each row and column divisible by 7, read as a base-3 number with top and left being the most significant digits.

Table of values

List of values