A158269 - cp's OEIS frontend

A158269 a(n) = coefficient of x^n in the (2^n)-th iteration of x*C(x) where C(x) is the Catalan function (A000108), for n>=1.

n	a(n)
1	1
2	4
3	72
4	4760
5	1196800
6	1185344160
7	4704904407424
8	75251548566631296
9	4850542035077717613312
10	1257976093502471658023554560
11	1310350352604009611135942297681920

[1, 4, 72, 4760, 1196800, 1185344160, 4704904407424, 75251548566631296, 4850542035077717613312, 1257976093502471658023554560, 1310350352604009611135942297681920]

cp's OEIS Frontend

A158269 a(n) = coefficient of x^n in the (2^n)-th iteration of x*C(x) where C(x) is the Catalan function (A000108), for n>=1.

Table of values

List of values