A357561 - cp's OEIS frontend

A357561 a(n) = the numerator of ( Sum_{k = 1..n} (-1)^(n+k)(1/k^3)binomial(n,k)* binomial(n+k,k)^2 ).

n	a(n)
0	0
1	4
2	-27
3	1367
4	-15625
5	3129353
6	-14749
7	308477847
8	14343020119
9	80826490175689
10	618729030402659
11	6526775794564145231
12	52975460244520902439
13	965428117884339747694757
14	8161435689582967449592663
15	70159702295938799645630801
16	4897311439674525483507166097
17	212741477113936719632186271679919

[0, 4, -27, 1367, -15625, 3129353, -14749, 308477847, 14343020119, 80826490175689, 618729030402659, 6526775794564145231, 52975460244520902439, 965428117884339747694757, 8161435689582967449592663, 70159702295938799645630801, 4897311439674525483507166097, 212741477113936719632186271679919]

cp's OEIS Frontend

A357561 a(n) = the numerator of ( Sum_{k = 1..n} (-1)^(n+k)(1/k^3)binomial(n,k)* binomial(n+k,k)^2 ).

Table of values

List of values

cp's OEIS Frontend

A357561 a(n) = the numerator of ( Sum_{k = 1..n} (-1)^(n+k)*(1/k^3)*binomial(n,k)* binomial(n+k,k)^2 ).

Table of values

List of values

A357561 a(n) = the numerator of ( Sum_{k = 1..n} (-1)^(n+k)(1/k^3)binomial(n,k)* binomial(n+k,k)^2 ).