A246462 - cp's OEIS frontend

A246462 a(n) = Sum_{k=0..n} (2k+1)C(n,k)^2C(n+k,k)^2, where C(n,k) denotes the binomial coefficient n!/(k!*(n-k)!).

n	a(n)
0	1
1	13
2	289
3	7733
4	223001
5	6689045
6	205569505
7	6422252485
8	203029535305
9	6476057609045
10	208013166524153
11	6718923443380109
12	218021269879802377
13	7101635058978727909
14	232072490781790669153
15	7604916953685880646885

[1, 13, 289, 7733, 223001, 6689045, 205569505, 6422252485, 203029535305, 6476057609045, 208013166524153, 6718923443380109, 218021269879802377, 7101635058978727909, 232072490781790669153, 7604916953685880646885]

cp's OEIS Frontend

A246462 a(n) = Sum_{k=0..n} (2k+1)C(n,k)^2C(n+k,k)^2, where C(n,k) denotes the binomial coefficient n!/(k!*(n-k)!).

Table of values

List of values

cp's OEIS Frontend

A246462 a(n) = Sum_{k=0..n} (2k+1)*C(n,k)^2*C(n+k,k)^2, where C(n,k) denotes the binomial coefficient n!/(k!*(n-k)!).

Table of values

List of values

A246462 a(n) = Sum_{k=0..n} (2k+1)C(n,k)^2C(n+k,k)^2, where C(n,k) denotes the binomial coefficient n!/(k!*(n-k)!).