A337615 - cp's OEIS frontend

A337615 T(n, k) = binomial(n, k)sf(n-k)sf(k) where sf is the subfactorial (A000166). Triangle read by rows, for 0 <= k <= n.

n	a(n)
0	1
1	0
2	0
3	1
4	0
5	1
6	2
7	0
8	0
9	2
10	9
11	0
12	6
13	0
14	9
15	44
16	0
17	20
18	20
19	0
20	44
21	265
22	0
23	135
24	80
25	135
26	0
27	265
28	1854
29	0
30	924
31	630
32	630
33	924
34	0
35	1854
36	14833
37	0
38	7420
39	4928
40	5670
41	4928
42	7420
43	0
44	14833
45	133496
46	0
47	66744
48	44520
49	49896
50	49896
51	44520
52	66744
53	0
54	133496

[1, 0, 0, 1, 0, 1, 2, 0, 0, 2, 9, 0, 6, 0, 9, 44, 0, 20, 20, 0, 44, 265, 0, 135, 80, 135, 0, 265, 1854, 0, 924, 630, 630, 924, 0, 1854, 14833, 0, 7420, 4928, 5670, 4928, 7420, 0, 14833, 133496, 0, 66744, 44520, 49896, 49896, 44520, 66744, 0, 133496]

cp's OEIS Frontend

A337615 T(n, k) = binomial(n, k)sf(n-k)sf(k) where sf is the subfactorial (A000166). Triangle read by rows, for 0 <= k <= n.

Table of values

List of values

cp's OEIS Frontend

A337615 T(n, k) = binomial(n, k)*sf(n-k)*sf(k) where sf is the subfactorial (A000166). Triangle read by rows, for 0 <= k <= n.

Table of values

List of values

A337615 T(n, k) = binomial(n, k)sf(n-k)sf(k) where sf is the subfactorial (A000166). Triangle read by rows, for 0 <= k <= n.