A074649 - cp's OEIS frontend

A074649 a(0) = 1; for n >= 1, a(n) = sum(binomial(n,k)^3*binomial(n+k,k+1)^2,k = 0..n)/n^2.

n	a(n)
0	1
1	2
2	23
3	434
4	10897
5	327270
6	11076235
7	408850370
8	16119036965
9	669177449258
10	28960814900899
11	1297024187184478
12	59777126587203937
13	2822927389747980806
14	136132927766691327651
15	6685542830954666301218
16	333618582889745741654221

[1, 2, 23, 434, 10897, 327270, 11076235, 408850370, 16119036965, 669177449258, 28960814900899, 1297024187184478, 59777126587203937, 2822927389747980806, 136132927766691327651, 6685542830954666301218, 333618582889745741654221]

cp's OEIS Frontend

A074649 a(0) = 1; for n >= 1, a(n) = sum(binomial(n,k)^3*binomial(n+k,k+1)^2,k = 0..n)/n^2.

Table of values

List of values