A372921 - cp's OEIS frontend

A372921 Triangle read by rows: T(n, k) = (Sum_{i=0..n-k} (-1)^i * binomial(n-k, i) * A007559(n-i)) * n! / ((n-k)! * A007559(k)) for 0 <= k <= n.

n	a(n)
0	1
1	0
2	1
3	3
4	6
5	2
6	18
7	63
8	36
9	6
10	189
11	828
12	684
13	216
14	24
15	2484
16	13365
17	14400
18	6660
19	1440
20	120
21	40095
22	255474
23	339390
24	206280
25	65880
26	10800
27	720
28	766422
29	5645619
30	8915508
31	6707610
32	2827440
33	687960
34	90720
35	5040
36	16936857
37	141626232
38	259137144
39	232306704
40	121519440
41	39130560
42	7680960
43	846720
44	40320

[1, 0, 1, 3, 6, 2, 18, 63, 36, 6, 189, 828, 684, 216, 24, 2484, 13365, 14400, 6660, 1440, 120, 40095, 255474, 339390, 206280, 65880, 10800, 720, 766422, 5645619, 8915508, 6707610, 2827440, 687960, 90720, 5040, 16936857, 141626232, 259137144, 232306704, 121519440, 39130560, 7680960, 846720, 40320]

cp's OEIS Frontend

A372921 Triangle read by rows: T(n, k) = (Sum_{i=0..n-k} (-1)^i * binomial(n-k, i) * A007559(n-i)) * n! / ((n-k)! * A007559(k)) for 0 <= k <= n.

Table of values

List of values