A111845 - cp's OEIS frontend

A111845 Triangle P, read by rows, that satisfies [P^4](n,k) = P(n+1,k+1) for n>=k>=0, also [P^(4*m)](n,k) = [P^m](n+1,k+1) for all m, where [P^m](n,k) denotes the element at row n, column k, of the matrix power m of P, with P(k,k)=1 and P(k+1,1)=P(k+1,0) for k>=0.

n	a(n)
0	1
1	1
2	1
3	4
4	4
5	1
6	40
7	40
8	16
9	1
10	1040
11	1040
12	544
13	64
14	1
15	78240
16	78240
17	48960
18	8320
19	256
20	1
21	18504256
22	18504256
23	13110400
24	2878720
25	131584
26	1024
27	1
28	14463224448
29	14463224448
30	11192599808
31	2982187520
32	180270080
33	2099200
34	4096
35	1

[1, 1, 1, 4, 4, 1, 40, 40, 16, 1, 1040, 1040, 544, 64, 1, 78240, 78240, 48960, 8320, 256, 1, 18504256, 18504256, 13110400, 2878720, 131584, 1024, 1, 14463224448, 14463224448, 11192599808, 2982187520, 180270080, 2099200, 4096, 1]

cp's OEIS Frontend

A111845 Triangle P, read by rows, that satisfies [P^4](n,k) = P(n+1,k+1) for n>=k>=0, also [P^(4*m)](n,k) = [P^m](n+1,k+1) for all m, where [P^m](n,k) denotes the element at row n, column k, of the matrix power m of P, with P(k,k)=1 and P(k+1,1)=P(k+1,0) for k>=0.

Table of values

List of values