A357511 - cp's OEIS frontend

A357511 a(n) = numerator of Sum_{k = 1..n} (1/k) * binomial(n,k)^2 * binomial(n+k,k)^2 for n >= 1 with a(0) = 0.

n	a(n)
0	0
1	4
2	54
3	2182
4	36625
5	3591137
6	25952409
7	4220121443
8	206216140401
9	47128096330129
10	1233722785504429
11	364131107601152519
12	9971452750252847789
13	3611140187389794708497
14	102077670374035974509597
15	2922063451137950165057717
16	169140610796591477659644439

[0, 4, 54, 2182, 36625, 3591137, 25952409, 4220121443, 206216140401, 47128096330129, 1233722785504429, 364131107601152519, 9971452750252847789, 3611140187389794708497, 102077670374035974509597, 2922063451137950165057717, 169140610796591477659644439]

cp's OEIS Frontend

A357511 a(n) = numerator of Sum_{k = 1..n} (1/k) * binomial(n,k)^2 * binomial(n+k,k)^2 for n >= 1 with a(0) = 0.

Table of values

List of values