A113130 - cp's OEIS frontend

A113130 a(0) = a(1) = 1, a(2) = x, a(3) = 2x^2, a(n) = x(n-1)a(n-1) + Sum_{j=2..n-2} (j-1)a(j)a(n-j), n>=4 and for x = 3.

n	a(n)
0	1
1	1
2	3
3	18
4	171
5	2214
6	35910
7	694980
8	15567795
9	395396478
10	11218141170
11	351527039676
12	12056563337598
13	449255267318844
14	18074052522890604
15	780881956274215944
16	36062953309417344579
17	1772992806860541951342

[1, 1, 3, 18, 171, 2214, 35910, 694980, 15567795, 395396478, 11218141170, 351527039676, 12056563337598, 449255267318844, 18074052522890604, 780881956274215944, 36062953309417344579, 1772992806860541951342]

cp's OEIS Frontend

A113130 a(0) = a(1) = 1, a(2) = x, a(3) = 2x^2, a(n) = x(n-1)a(n-1) + Sum_{j=2..n-2} (j-1)a(j)a(n-j), n>=4 and for x = 3.

Table of values

List of values

cp's OEIS Frontend

A113130 a(0) = a(1) = 1, a(2) = x, a(3) = 2x^2, a(n) = x*(n-1)*a(n-1) + Sum_{j=2..n-2} (j-1)*a(j)*a(n-j), n>=4 and for x = 3.

Table of values

List of values

A113130 a(0) = a(1) = 1, a(2) = x, a(3) = 2x^2, a(n) = x(n-1)a(n-1) + Sum_{j=2..n-2} (j-1)a(j)a(n-j), n>=4 and for x = 3.