A135052 - cp's OEIS frontend

A135052 Expansion of g.f.: (1-2x-sqrt(1-4x+8x^3-4x^4))/(2x^2(1-x)).

n	a(n)
0	1
1	1
2	3
3	7
4	19
5	51
6	143
7	407
8	1183
9	3487
10	10415
11	31439
12	95791
13	294191
14	909823
15	2830943
16	8856255
17	27839167
18	87888767
19	278545663
20	885903743
21	2826612095
22	9045147391
23	29022168063
24	93350430975
25	300949170431
26	972271227647

[1, 1, 3, 7, 19, 51, 143, 407, 1183, 3487, 10415, 31439, 95791, 294191, 909823, 2830943, 8856255, 27839167, 87888767, 278545663, 885903743, 2826612095, 9045147391, 29022168063, 93350430975, 300949170431, 972271227647]

cp's OEIS Frontend

A135052 Expansion of g.f.: (1-2x-sqrt(1-4x+8x^3-4x^4))/(2x^2(1-x)).

Table of values

List of values

cp's OEIS Frontend

A135052 Expansion of g.f.: (1-2*x-sqrt(1-4*x+8*x^3-4*x^4))/(2*x^2*(1-x)).

Table of values

List of values

A135052 Expansion of g.f.: (1-2x-sqrt(1-4x+8x^3-4x^4))/(2x^2(1-x)).