A298851 - cp's OEIS frontend

A298851 a(n) = [x^n] Product_{k=1..n} 1/(1-k^2*x).

n	a(n)
0	1
1	1
2	21
3	1408
4	196053
5	46587905
6	16875270660
7	8657594647800
8	5974284925007685
9	5336898188553325075
10	5992171630749371157181
11	8260051854943114812198756
12	13714895317396748230146099660
13	26998129079190909699998105620908
14	62173633286588800021263427046090792

[1, 1, 21, 1408, 196053, 46587905, 16875270660, 8657594647800, 5974284925007685, 5336898188553325075, 5992171630749371157181, 8260051854943114812198756, 13714895317396748230146099660, 26998129079190909699998105620908, 62173633286588800021263427046090792]

cp's OEIS Frontend

A298851 a(n) = [x^n] Product_{k=1..n} 1/(1-k^2*x).

Table of values

List of values