A162580 - cp's OEIS frontend

A162580 G.f.: A(x) = exp( 2Sum_{n>=1} 2^[A007814(n)^2] x^n/n ), where A007814(n) = exponent of highest power of 2 dividing n.

n	a(n)
0	1
1	2
2	4
3	6
4	16
5	26
6	44
7	62
8	240
9	418
10	756
11	1094
12	2544
13	3994
14	6556
15	9118
16	32352
17	55586
18	99492
19	143398
20	330000
21	516602
22	845900
23	1175198
24	3452112
25	5729026
26	9953556
27	14178086
28	31076592
29	47975098
30	77547580
31	107120062
32	298608832
33	490097602

[1, 2, 4, 6, 16, 26, 44, 62, 240, 418, 756, 1094, 2544, 3994, 6556, 9118, 32352, 55586, 99492, 143398, 330000, 516602, 845900, 1175198, 3452112, 5729026, 9953556, 14178086, 31076592, 47975098, 77547580, 107120062, 298608832, 490097602]

cp's OEIS Frontend

A162580 G.f.: A(x) = exp( 2Sum_{n>=1} 2^[A007814(n)^2] x^n/n ), where A007814(n) = exponent of highest power of 2 dividing n.

Table of values

List of values

cp's OEIS Frontend

A162580 G.f.: A(x) = exp( 2*Sum_{n>=1} 2^[A007814(n)^2] * x^n/n ), where A007814(n) = exponent of highest power of 2 dividing n.

Table of values

List of values

A162580 G.f.: A(x) = exp( 2Sum_{n>=1} 2^[A007814(n)^2] x^n/n ), where A007814(n) = exponent of highest power of 2 dividing n.