A068764 - cp's OEIS frontend

A068764 Generalized Catalan numbers 2xA(x)^2 -A(x) +1 -x =0.

n	a(n)
0	1
1	1
2	4
3	18
4	88
5	456
6	2464
7	13736
8	78432
9	456416
10	2697088
11	16141120
12	97632000
13	595912960
14	3665728512
15	22703097472
16	141448381952
17	885934151168
18	5575020435456
19	35230798994432
20	223485795258368
21	1422572226146304
22	9083682419818496
23	58169612565614592
24	373486362257899520
25	2403850703479816192

[1, 1, 4, 18, 88, 456, 2464, 13736, 78432, 456416, 2697088, 16141120, 97632000, 595912960, 3665728512, 22703097472, 141448381952, 885934151168, 5575020435456, 35230798994432, 223485795258368, 1422572226146304, 9083682419818496, 58169612565614592, 373486362257899520, 2403850703479816192]

cp's OEIS Frontend

A068764 Generalized Catalan numbers 2xA(x)^2 -A(x) +1 -x =0.

Table of values

List of values

cp's OEIS Frontend

A068764 Generalized Catalan numbers 2*x*A(x)^2 -A(x) +1 -x =0.

Table of values

List of values

A068764 Generalized Catalan numbers 2xA(x)^2 -A(x) +1 -x =0.