A386507 - cp's OEIS frontend

A386507 a(0) = 1; a(n) = a(n-1) + Sum_{k=0..n-1} (1 + k) * k^4 * binomial(n-1,k) * a(k) * a(n-1-k).

n	a(n)
0	1
1	1
2	3
3	151
4	49525
5	63641021
6	239036610181
7	2170214958201445
8	41702857906969051017
9	1537709560908537888618409
10	100904503302575334820438217641
11	11100605398391683050596962755215561
12	1950420777626865443224119613333235611309
13	525796384523344023260217345195483215249534941

[1, 1, 3, 151, 49525, 63641021, 239036610181, 2170214958201445, 41702857906969051017, 1537709560908537888618409, 100904503302575334820438217641, 11100605398391683050596962755215561, 1950420777626865443224119613333235611309, 525796384523344023260217345195483215249534941]

cp's OEIS Frontend

A386507 a(0) = 1; a(n) = a(n-1) + Sum_{k=0..n-1} (1 + k) * k^4 * binomial(n-1,k) * a(k) * a(n-1-k).

Table of values

List of values