A126671 - cp's OEIS frontend

A126671 Triangle read by rows: row n (n>=0) has g.f. Sum_{i=1..n} n!x^i(1+x)^(n-i)/(n+1-i).

n	a(n)
1	0
2	0
3	1
4	0
5	1
6	3
7	0
8	2
9	7
10	11
11	0
12	6
13	26
14	46
15	50
16	0
17	24
18	126
19	274
20	326
21	274
22	0
23	120
24	744
25	1956
26	2844
27	2556
28	1764
29	0
30	720
31	5160
32	16008
33	28092
34	30708
35	22212
36	13068
37	0
38	5040
39	41040
40	147120
41	304464
42	401136
43	351504
44	212976
45	109584
46	0
47	40320

[0, 0, 1, 0, 1, 3, 0, 2, 7, 11, 0, 6, 26, 46, 50, 0, 24, 126, 274, 326, 274, 0, 120, 744, 1956, 2844, 2556, 1764, 0, 720, 5160, 16008, 28092, 30708, 22212, 13068, 0, 5040, 41040, 147120, 304464, 401136, 351504, 212976, 109584, 0, 40320]

cp's OEIS Frontend

A126671 Triangle read by rows: row n (n>=0) has g.f. Sum_{i=1..n} n!x^i(1+x)^(n-i)/(n+1-i).

Table of values

List of values

cp's OEIS Frontend

A126671 Triangle read by rows: row n (n>=0) has g.f. Sum_{i=1..n} n!*x^i*(1+x)^(n-i)/(n+1-i).

Table of values

List of values

A126671 Triangle read by rows: row n (n>=0) has g.f. Sum_{i=1..n} n!x^i(1+x)^(n-i)/(n+1-i).