A231123 - cp's OEIS frontend

A231123 Array T(n,k) read by antidiagonals: T(n,k) = sum(i=0...n, (-1)^(n+i) * C(n+i,2i) * n/(2i+1) * k^(2i+1) ), n>0, k>1.

n	a(n)
2	2
3	2
4	18
5	2
6	123
7	52
8	2
9	843
10	724
11	110
12	2
13	5778
14	10084
15	2525
16	198
17	2
18	39603
19	140452
20	57965
21	6726
22	322
23	2
24	271443
25	1956244
26	1330670
27	228486
28	15127
29	488
30	2
31	1860498
32	27246964
33	30547445
34	7761798
35	710647
36	30248
37	702
38	2
39	12752043
40	379501252
41	701260565
42	263672646

[2, 2, 18, 2, 123, 52, 2, 843, 724, 110, 2, 5778, 10084, 2525, 198, 2, 39603, 140452, 57965, 6726, 322, 2, 271443, 1956244, 1330670, 228486, 15127, 488, 2, 1860498, 27246964, 30547445, 7761798, 710647, 30248, 702, 2, 12752043, 379501252, 701260565, 263672646]

cp's OEIS Frontend

A231123 Array T(n,k) read by antidiagonals: T(n,k) = sum(i=0...n, (-1)^(n+i) * C(n+i,2i) * n/(2i+1) * k^(2i+1) ), n>0, k>1.

Table of values

List of values