A111820 - cp's OEIS frontend

A111820 Triangle P, read by rows, that satisfies [P^5](n,k) = P(n+1,k+1) for n>=k>=0, also [P^(5*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(0,k)=1 and P(k,k)=1 for all k>=0.

n	a(n)
0	1
1	1
2	1
3	1
4	5
5	1
6	1
7	55
8	25
9	1
10	1
11	2055
12	1525
13	125
14	1
15	1
16	291430
17	311525
18	38875
19	625
20	1
21	1
22	165397680
23	239305275
24	40338875
25	975625
26	3125
27	1
28	1
29	390075741430
30	735920617775
31	157056792000
32	5077475625
33	24409375
34	15625
35	1

[1, 1, 1, 1, 5, 1, 1, 55, 25, 1, 1, 2055, 1525, 125, 1, 1, 291430, 311525, 38875, 625, 1, 1, 165397680, 239305275, 40338875, 975625, 3125, 1, 1, 390075741430, 735920617775, 157056792000, 5077475625, 24409375, 15625, 1]

cp's OEIS Frontend

A111820 Triangle P, read by rows, that satisfies [P^5](n,k) = P(n+1,k+1) for n>=k>=0, also [P^(5*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(0,k)=1 and P(k,k)=1 for all k>=0.

Table of values

List of values