A071716 - cp's OEIS frontend

A071716 Expansion of (1+x^2C)C, where C = (1-(1-4x)^(1/2))/(2x) is g.f. for Catalan numbers, A000108.

n	a(n)
0	1
1	1
2	3
3	7
4	19
5	56
6	174
7	561
8	1859
9	6292
10	21658
11	75582
12	266798
13	950912
14	3417340
15	12369285
16	45052515
17	165002460
18	607283490
19	2244901890
20	8331383610
21	31030387440
22	115948830660
23	434542177290
24	1632963760974
25	6151850548776

[1, 1, 3, 7, 19, 56, 174, 561, 1859, 6292, 21658, 75582, 266798, 950912, 3417340, 12369285, 45052515, 165002460, 607283490, 2244901890, 8331383610, 31030387440, 115948830660, 434542177290, 1632963760974, 6151850548776]

cp's OEIS Frontend

A071716 Expansion of (1+x^2C)C, 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

A071716 Expansion of (1+x^2*C)*C, where C = (1-(1-4*x)^(1/2))/(2*x) is g.f. for Catalan numbers, A000108.

Table of values

List of values

A071716 Expansion of (1+x^2C)C, where C = (1-(1-4x)^(1/2))/(2x) is g.f. for Catalan numbers, A000108.