A174694 - cp's OEIS frontend

A174694 Triangle T(n, k) = n!(1/k)binomial(n-1, k-1)*binomial(n, k-1) - n! + 1, read by rows.

n	a(n)
1	1
2	1
3	1
4	1
5	13
6	1
7	1
8	121
9	121
10	1
11	1
12	1081
13	2281
14	1081
15	1
16	1
17	10081
18	35281
19	35281
20	10081
21	1
22	1
23	100801
24	524161
25	876961
26	524161
27	100801
28	1
29	1
30	1088641
31	7862401
32	19716481
33	19716481
34	7862401
35	1088641
36	1
37	1
38	12700801
39	121564801
40	426384001
41	639757441
42	426384001
43	121564801
44	12700801
45	1

[1, 1, 1, 1, 13, 1, 1, 121, 121, 1, 1, 1081, 2281, 1081, 1, 1, 10081, 35281, 35281, 10081, 1, 1, 100801, 524161, 876961, 524161, 100801, 1, 1, 1088641, 7862401, 19716481, 19716481, 7862401, 1088641, 1, 1, 12700801, 121564801, 426384001, 639757441, 426384001, 121564801, 12700801, 1]

cp's OEIS Frontend

A174694 Triangle T(n, k) = n!(1/k)binomial(n-1, k-1)*binomial(n, k-1) - n! + 1, read by rows.

Table of values

List of values

cp's OEIS Frontend

A174694 Triangle T(n, k) = n!*(1/k)*binomial(n-1, k-1)*binomial(n, k-1) - n! + 1, read by rows.

Table of values

List of values

A174694 Triangle T(n, k) = n!(1/k)binomial(n-1, k-1)*binomial(n, k-1) - n! + 1, read by rows.