A356290 - cp's OEIS frontend

A356290 a(n) = Sum_{k=0..n} binomial(3n, n-k) v(k), where v(k) is the number of overpartitions of n (A015128).

n	a(n)
0	1
1	5
2	31
3	200
4	1309
5	8627
6	57082
7	378648
8	2516111
9	16740913
10	111494801
11	743137984
12	4956359312
13	33074272702
14	220810039566
15	1474764797488
16	9853307017341
17	65853733243281
18	440255398634199
19	2944041287677060
20	19691951641479427
21	131744163990056479
22	881586559906575688

[1, 5, 31, 200, 1309, 8627, 57082, 378648, 2516111, 16740913, 111494801, 743137984, 4956359312, 33074272702, 220810039566, 1474764797488, 9853307017341, 65853733243281, 440255398634199, 2944041287677060, 19691951641479427, 131744163990056479, 881586559906575688]

cp's OEIS Frontend

A356290 a(n) = Sum_{k=0..n} binomial(3n, n-k) v(k), where v(k) is the number of overpartitions of n (A015128).

Table of values

List of values

cp's OEIS Frontend

A356290 a(n) = Sum_{k=0..n} binomial(3*n, n-k) * v(k), where v(k) is the number of overpartitions of n (A015128).

Table of values

List of values

A356290 a(n) = Sum_{k=0..n} binomial(3n, n-k) v(k), where v(k) is the number of overpartitions of n (A015128).