A372420 - cp's OEIS frontend

A372420 Expansion of (1 + x) / ((1 - 2x)sqrt(1 - 4*x)).

n	a(n)
0	1
1	5
2	18
3	62
4	214
5	750
6	2676
7	9708
8	35718
9	132926
10	499228
11	1888644
12	7186876
13	27478508
14	105474216
15	406182552
16	1568563014
17	6071812638
18	23552366796
19	91525132692
20	356242058004
21	1388588519268
22	5419533876696
23	21176597444712
24	82834229300124
25	324326668721100

[1, 5, 18, 62, 214, 750, 2676, 9708, 35718, 132926, 499228, 1888644, 7186876, 27478508, 105474216, 406182552, 1568563014, 6071812638, 23552366796, 91525132692, 356242058004, 1388588519268, 5419533876696, 21176597444712, 82834229300124, 324326668721100]

cp's OEIS Frontend

A372420 Expansion of (1 + x) / ((1 - 2x)sqrt(1 - 4*x)).

Table of values

List of values

cp's OEIS Frontend

A372420 Expansion of (1 + x) / ((1 - 2*x)*sqrt(1 - 4*x)).

Table of values

List of values

A372420 Expansion of (1 + x) / ((1 - 2x)sqrt(1 - 4*x)).