A111088 - cp's OEIS frontend

A111088 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 = 2.

n	a(n)
0	1
1	1
2	2
3	8
4	52
5	464
6	5184
7	68928
8	1057584
9	18345536
10	354570112
11	7551674624
12	175700025728
13	4433961734656
14	120642462777344
15	3520972469815296
16	109731998026937088
17	3637456413350962176
18	127800512612435896320

[1, 1, 2, 8, 52, 464, 5184, 68928, 1057584, 18345536, 354570112, 7551674624, 175700025728, 4433961734656, 120642462777344, 3520972469815296, 109731998026937088, 3637456413350962176, 127800512612435896320]

cp's OEIS Frontend

A111088 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 = 2.

Table of values

List of values

cp's OEIS Frontend

A111088 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 = 2.

Table of values

List of values

A111088 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 = 2.