A210736 - cp's OEIS frontend

A210736 Expansion of (1 + sqrt( (1 + 2x) / (1 - 2x))) / 2 in powers of x.

n	a(n)
0	1
1	1
2	1
3	2
4	3
5	6
6	10
7	20
8	35
9	70
10	126
11	252
12	462
13	924
14	1716
15	3432
16	6435
17	12870
18	24310
19	48620
20	92378
21	184756
22	352716
23	705432
24	1352078
25	2704156
26	5200300
27	10400600
28	20058300
29	40116600
30	77558760
31	155117520
32	300540195
33	601080390
34	1166803110
35	2333606220
36	4537567650

[1, 1, 1, 2, 3, 6, 10, 20, 35, 70, 126, 252, 462, 924, 1716, 3432, 6435, 12870, 24310, 48620, 92378, 184756, 352716, 705432, 1352078, 2704156, 5200300, 10400600, 20058300, 40116600, 77558760, 155117520, 300540195, 601080390, 1166803110, 2333606220, 4537567650]

cp's OEIS Frontend

A210736 Expansion of (1 + sqrt( (1 + 2x) / (1 - 2x))) / 2 in powers of x.

Table of values

List of values

cp's OEIS Frontend

A210736 Expansion of (1 + sqrt( (1 + 2*x) / (1 - 2*x))) / 2 in powers of x.

Table of values

List of values

A210736 Expansion of (1 + sqrt( (1 + 2x) / (1 - 2x))) / 2 in powers of x.