A209684 - cp's OEIS frontend

A209684 T(n,k) = Number of n X n 0..k arrays with every element equal to a diagonal or antidiagonal reflection, and new values 0 upwards introduced in row major order.

n	a(n)
1	1
2	1
3	8
4	1
5	14
6	96
7	1
8	15
9	608
10	4608
11	1
12	15
13	1243
14	246038
15	331776
16	1
17	15
18	1508
19	2143147
20	166075313
21	95551488
22	1
23	15
24	1549
25	6716352
26	6713848491
27	1008907523438
28	41278242816
29	1
30	15
31	1551
32	11315839
33	66825091608
34	336865786047147

[1, 1, 8, 1, 14, 96, 1, 15, 608, 4608, 1, 15, 1243, 246038, 331776, 1, 15, 1508, 2143147, 166075313, 95551488, 1, 15, 1549, 6716352, 6713848491, 1008907523438, 41278242816, 1, 15, 1551, 11315839, 66825091608, 336865786047147]

cp's OEIS Frontend

A209684 T(n,k) = Number of n X n 0..k arrays with every element equal to a diagonal or antidiagonal reflection, and new values 0 upwards introduced in row major order.

Table of values

List of values