A169658 - cp's OEIS frontend

A169658 Triangle, read by rows, defined by T(n, k) = b(n, k) + b(n, n-k+1) - (b(n,1) + b(n,n)) + 1, where b(n, k) = (-1)^n(n!/k!)^2 binomial(n-1, k-1).

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	1
7	1
8	-96
9	-96
10	1
11	1
12	-98
13	9602
14	-98
15	1
16	1
17	129780
18	-365400
19	-365400
20	129780
21	1
22	1
23	-12701092
24	14791142
25	23637602
26	14791142
27	-12701092
28	1
29	1
30	1219277248
31	-677310144
32	-1522967040
33	-1522967040
34	-677310144
35	1219277248
36	1

[1, 1, 1, 1, 2, 1, 1, -96, -96, 1, 1, -98, 9602, -98, 1, 1, 129780, -365400, -365400, 129780, 1, 1, -12701092, 14791142, 23637602, 14791142, -12701092, 1, 1, 1219277248, -677310144, -1522967040, -1522967040, -677310144, 1219277248, 1]

cp's OEIS Frontend

A169658 Triangle, read by rows, defined by T(n, k) = b(n, k) + b(n, n-k+1) - (b(n,1) + b(n,n)) + 1, where b(n, k) = (-1)^n(n!/k!)^2 binomial(n-1, k-1).

Table of values

List of values

cp's OEIS Frontend

A169658 Triangle, read by rows, defined by T(n, k) = b(n, k) + b(n, n-k+1) - (b(n,1) + b(n,n)) + 1, where b(n, k) = (-1)^n*(n!/k!)^2 *binomial(n-1, k-1).

Table of values

List of values

A169658 Triangle, read by rows, defined by T(n, k) = b(n, k) + b(n, n-k+1) - (b(n,1) + b(n,n)) + 1, where b(n, k) = (-1)^n(n!/k!)^2 binomial(n-1, k-1).