A063786 - cp's OEIS frontend

A063786 G.f.: A(x) = (x-2x^2-2x^3-(1+x)sqrt(1-4x^2)+sqrt(1-4x^6))/(2x^2).

n	a(n)
2	1
3	1
4	1
5	2
6	5
7	5
8	14
9	14
10	41
11	42
12	132
13	132
14	429
15	429
16	1428
17	1430
18	4862
19	4862
20	16796
21	16796
22	58781
23	58786
24	208012
25	208012
26	742900
27	742900
28	2674426
29	2674440
30	9694845
31	9694845
32	35357670
33	35357670
34	129644748
35	129644790
36	477638700
37	477638700

[1, 1, 1, 2, 5, 5, 14, 14, 41, 42, 132, 132, 429, 429, 1428, 1430, 4862, 4862, 16796, 16796, 58781, 58786, 208012, 208012, 742900, 742900, 2674426, 2674440, 9694845, 9694845, 35357670, 35357670, 129644748, 129644790, 477638700, 477638700]

cp's OEIS Frontend

A063786 G.f.: A(x) = (x-2x^2-2x^3-(1+x)sqrt(1-4x^2)+sqrt(1-4x^6))/(2x^2).

Table of values

List of values

cp's OEIS Frontend

A063786 G.f.: A(x) = (x-2*x^2-2*x^3-(1+x)*sqrt(1-4*x^2)+sqrt(1-4*x^6))/(2*x^2).

Table of values

List of values

A063786 G.f.: A(x) = (x-2x^2-2x^3-(1+x)sqrt(1-4x^2)+sqrt(1-4x^6))/(2x^2).