A071264 - cp's OEIS frontend

A071264 Expansion of (1+xC^4)C^3, where C = (1-(1-4x)^(1/2))/(2x) is g.f. for Catalan numbers, A000108.

n	a(n)
0	1
1	4
2	16
3	63
4	244
5	934
6	3549
7	13428
8	50694
9	191216
10	721259
11	2722073
12	10282610
13	38886330
14	147243585
15	558279000
16	2119599270
17	8058312360
18	30677134380
19	116937340494
20	446317079712
21	1705563385196
22	6525404350306
23	24994411455928

[1, 4, 16, 63, 244, 934, 3549, 13428, 50694, 191216, 721259, 2722073, 10282610, 38886330, 147243585, 558279000, 2119599270, 8058312360, 30677134380, 116937340494, 446317079712, 1705563385196, 6525404350306, 24994411455928]

cp's OEIS Frontend

A071264 Expansion of (1+xC^4)C^3, where C = (1-(1-4x)^(1/2))/(2x) is g.f. for Catalan numbers, A000108.

Table of values

List of values

cp's OEIS Frontend

A071264 Expansion of (1+x*C^4)*C^3, where C = (1-(1-4*x)^(1/2))/(2*x) is g.f. for Catalan numbers, A000108.

Table of values

List of values

A071264 Expansion of (1+xC^4)C^3, where C = (1-(1-4x)^(1/2))/(2x) is g.f. for Catalan numbers, A000108.