A121336 - cp's OEIS frontend

A121336 Triangle, read by rows, where T(n,k) = C( n*(n+1)/2 + n-k + 2, n-k), for n>=k>=0.

n	a(n)
0	1
1	4
2	1
3	21
4	6
5	1
6	165
7	45
8	9
9	1
10	1820
11	455
12	91
13	13
14	1
15	26334
16	5985
17	1140
18	171
19	18
20	1
21	475020
22	98280
23	17550
24	2600
25	300
26	24
27	1
28	10295472
29	1947792
30	324632
31	46376
32	5456
33	496
34	31
35	1
36	260932815
37	45379620
38	7059052
39	962598
40	111930
41	10660
42	780
43	39
44	1

[1, 4, 1, 21, 6, 1, 165, 45, 9, 1, 1820, 455, 91, 13, 1, 26334, 5985, 1140, 171, 18, 1, 475020, 98280, 17550, 2600, 300, 24, 1, 10295472, 1947792, 324632, 46376, 5456, 496, 31, 1, 260932815, 45379620, 7059052, 962598, 111930, 10660, 780, 39, 1]

cp's OEIS Frontend

A121336 Triangle, read by rows, where T(n,k) = C( n*(n+1)/2 + n-k + 2, n-k), for n>=k>=0.

Table of values

List of values