A156984 - cp's OEIS frontend

A156984 Triangle T(n, k) = n!Sum_{j=k..n} (-1)^(j+k)binomial(k+j, j)/j!, read by rows.

n	a(n)
0	1
1	0
2	2
3	1
4	1
5	6
6	2
7	7
8	8
9	20
10	9
11	23
12	47
13	45
14	70
15	44
16	121
17	214
18	281
19	224
20	252
21	265
22	719
23	1312
24	1602
25	1554
26	1050
27	924
28	1854
29	5041
30	9148
31	11334
32	10548
33	8142
34	4752
35	3432
36	14833
37	40319
38	73229
39	90507
40	84879
41	63849
42	41019
43	21021
44	12870
45	133496
46	362881
47	659006
48	814783
49	763196
50	576643
51	364166
52	200629
53	91520
54	48620

[1, 0, 2, 1, 1, 6, 2, 7, 8, 20, 9, 23, 47, 45, 70, 44, 121, 214, 281, 224, 252, 265, 719, 1312, 1602, 1554, 1050, 924, 1854, 5041, 9148, 11334, 10548, 8142, 4752, 3432, 14833, 40319, 73229, 90507, 84879, 63849, 41019, 21021, 12870, 133496, 362881, 659006, 814783, 763196, 576643, 364166, 200629, 91520, 48620]

cp's OEIS Frontend

A156984 Triangle T(n, k) = n!Sum_{j=k..n} (-1)^(j+k)binomial(k+j, j)/j!, read by rows.

Table of values

List of values

cp's OEIS Frontend

A156984 Triangle T(n, k) = n!*Sum_{j=k..n} (-1)^(j+k)*binomial(k+j, j)/j!, read by rows.

Table of values

List of values

A156984 Triangle T(n, k) = n!Sum_{j=k..n} (-1)^(j+k)binomial(k+j, j)/j!, read by rows.