A269957 - cp's OEIS frontend

A269957 Triangle read by rows, T(n,k) = Sum_{j=k..n} A269940(n,j)*A269939(j,k), for n>=0 and 0<=k<=n.

n	a(n)
0	1
1	0
2	1
3	0
4	5
5	9
6	0
7	41
8	210
9	225
10	0
11	469
12	5115
13	14175
14	11025
15	0
16	6889
17	142492
18	763350
19	1455300
20	893025
21	0
22	123605
23	4566149
24	41943090
25	146522250
26	212837625
27	108056025
28	0
29	2620169
30	166939742
31	2462128095
32	13973628900
33	35936814375
34	42141849750
35	18261468225

[1, 0, 1, 0, 5, 9, 0, 41, 210, 225, 0, 469, 5115, 14175, 11025, 0, 6889, 142492, 763350, 1455300, 893025, 0, 123605, 4566149, 41943090, 146522250, 212837625, 108056025, 0, 2620169, 166939742, 2462128095, 13973628900, 35936814375, 42141849750, 18261468225]

cp's OEIS Frontend

A269957 Triangle read by rows, T(n,k) = Sum_{j=k..n} A269940(n,j)*A269939(j,k), for n>=0 and 0<=k<=n.

Table of values

List of values