A071718 - cp's OEIS frontend

A071718 Expansion of (1+x^2C)C^3, where C = (1-(1-4x)^(1/2))/(2x) is g.f. for Catalan numbers, A000108.

n	a(n)
0	1
1	3
2	10
3	32
4	104
5	345
6	1166
7	4004
8	13936
9	49062
10	174420
11	625328
12	2258416
13	8209045
14	30008790
15	110255100
16	406923360
17	1507973610
18	5608843020
19	20931740640
20	78354322800
21	294127079610
22	1106939020044
23	4175827174152
24	15787544777504

[1, 3, 10, 32, 104, 345, 1166, 4004, 13936, 49062, 174420, 625328, 2258416, 8209045, 30008790, 110255100, 406923360, 1507973610, 5608843020, 20931740640, 78354322800, 294127079610, 1106939020044, 4175827174152, 15787544777504]

cp's OEIS Frontend

A071718 Expansion of (1+x^2C)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

A071718 Expansion of (1+x^2*C)*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

A071718 Expansion of (1+x^2C)C^3, where C = (1-(1-4x)^(1/2))/(2x) is g.f. for Catalan numbers, A000108.