A112036 - cp's OEIS frontend

A112036 a(n) = Sum_{k=0..n} kC(n,k)^3C(n+k,k), where C := binomial.

n	a(n)
0	0
1	2
2	36
3	708
4	13800
5	275010
6	5546016
7	112928648
8	2316836304
9	47818490310
10	991809240180
11	20655287811972
12	431646101898336
13	9046910585978538
14	190096907348726280
15	4003238051096801040
16	84468326787457833888
17	1785362928126983779374
18	37794508394454024115212
19	801183789256961484235340

[0, 2, 36, 708, 13800, 275010, 5546016, 112928648, 2316836304, 47818490310, 991809240180, 20655287811972, 431646101898336, 9046910585978538, 190096907348726280, 4003238051096801040, 84468326787457833888, 1785362928126983779374, 37794508394454024115212, 801183789256961484235340]

cp's OEIS Frontend

A112036 a(n) = Sum_{k=0..n} kC(n,k)^3C(n+k,k), where C := binomial.

Table of values

List of values

cp's OEIS Frontend

A112036 a(n) = Sum_{k=0..n} k*C(n,k)^3*C(n+k,k), where C := binomial.

Table of values

List of values

A112036 a(n) = Sum_{k=0..n} kC(n,k)^3C(n+k,k), where C := binomial.