A217553 - cp's OEIS frontend

A217553 G.f.: exp( Sum_{n>=1} 4^A001511(n) * x^n/n ), where 2^A001511(n) is the highest power of 2 that divides 2*n.

n	a(n)
0	1
1	4
2	16
3	44
4	128
5	308
6	752
7	1628
8	3584
9	7268
10	14864
11	28556
12	55296
13	102036
14	189168
15	337084
16	603136
17	1044676
18	1814288
19	3064556
20	5188352
21	8578548
22	14205936
23	23041308
24	37420800
25	59680548
26	95265552
27	149620812
28	235161216
29	364301652
30	564627952
31	863725948
32	1321756672

[1, 4, 16, 44, 128, 308, 752, 1628, 3584, 7268, 14864, 28556, 55296, 102036, 189168, 337084, 603136, 1044676, 1814288, 3064556, 5188352, 8578548, 14205936, 23041308, 37420800, 59680548, 95265552, 149620812, 235161216, 364301652, 564627952, 863725948, 1321756672]

cp's OEIS Frontend

A217553 G.f.: exp( Sum_{n>=1} 4^A001511(n) * x^n/n ), where 2^A001511(n) is the highest power of 2 that divides 2*n.

Table of values

List of values