A140925 - cp's OEIS frontend

A140925 a(n) = binomial(m+n-1,n)^2 - binomial(m+n,n+1)*binomial(m+n-2,n-1) with m=12.

n	a(n)
0	1
1	66
2	1716
3	26026
4	273273
5	2186184
6	14158144
7	77364144
8	367479684
9	1551580888
10	5924217936
11	20734762776
12	67255063876
13	203982391536
14	582806832960
15	1578435172600
16	4073755482225
17	10064572367850
18	23896002230100
19	54709268263650
20	121141951155225
21	260114319363600

[1, 66, 1716, 26026, 273273, 2186184, 14158144, 77364144, 367479684, 1551580888, 5924217936, 20734762776, 67255063876, 203982391536, 582806832960, 1578435172600, 4073755482225, 10064572367850, 23896002230100, 54709268263650, 121141951155225, 260114319363600]

cp's OEIS Frontend

A140925 a(n) = binomial(m+n-1,n)^2 - binomial(m+n,n+1)*binomial(m+n-2,n-1) with m=12.

Table of values

List of values