A025577 - cp's OEIS frontend

A025577 Expansion of (x/(1-x))sqrt((1+x)/(1-3x)).

n	a(n)
1	1
2	3
3	7
4	17
5	43
6	113
7	305
8	839
9	2339
10	6585
11	18677
12	53283
13	152725
14	439455
15	1268623
16	3672457
17	10656691
18	30988249
19	90275989
20	263425651
21	769801873
22	2252531971
23	6599018227
24	19353381877
25	56814946381
26	166940119063
27	490930181515
28	1444813563869

[1, 3, 7, 17, 43, 113, 305, 839, 2339, 6585, 18677, 53283, 152725, 439455, 1268623, 3672457, 10656691, 30988249, 90275989, 263425651, 769801873, 2252531971, 6599018227, 19353381877, 56814946381, 166940119063, 490930181515, 1444813563869]

cp's OEIS Frontend

A025577 Expansion of (x/(1-x))sqrt((1+x)/(1-3x)).

Table of values

List of values

cp's OEIS Frontend

A025577 Expansion of (x/(1-x))*sqrt((1+x)/(1-3*x)).

Table of values

List of values

A025577 Expansion of (x/(1-x))sqrt((1+x)/(1-3x)).