A136304 - cp's OEIS frontend

A136304 Expansion of g.f. (1-z)^2(1-sqrt(1-4z))/(2z(1 - 3z + 2z^2 - z^3)).

n	a(n)
0	1
1	2
2	5
3	14
4	40
5	116
6	344
7	1047
8	3273
9	10500
10	34503
11	115838
12	396244
13	1377221
14	4851665
15	17285662
16	62173297
17	225424527
18	822919439
19	3021713140
20	11151957809
21	41340655956
22	153853915410
23	574593145517
24	2152679745351
25	8087904580883
26	30466311814036
27	115036597198845

[1, 2, 5, 14, 40, 116, 344, 1047, 3273, 10500, 34503, 115838, 396244, 1377221, 4851665, 17285662, 62173297, 225424527, 822919439, 3021713140, 11151957809, 41340655956, 153853915410, 574593145517, 2152679745351, 8087904580883, 30466311814036, 115036597198845]

cp's OEIS Frontend

A136304 Expansion of g.f. (1-z)^2(1-sqrt(1-4z))/(2z(1 - 3z + 2z^2 - z^3)).

Table of values

List of values

cp's OEIS Frontend

A136304 Expansion of g.f. (1-z)^2*(1-sqrt(1-4*z))/(2*z*(1 - 3*z + 2*z^2 - z^3)).

Table of values

List of values

A136304 Expansion of g.f. (1-z)^2(1-sqrt(1-4z))/(2z(1 - 3z + 2z^2 - z^3)).