A280543 - cp's OEIS frontend

A280543 Expansion of 1/(1 - x - Sum_{k>=2} floor(1/omega(k))*x^k), where omega(k) is the number of distinct prime factors (A001221).

n	a(n)
0	1
1	1
2	2
3	4
4	8
5	16
6	31
7	62
8	123
9	244
10	483
11	958
12	1899
13	3765
14	7463
15	14794
16	29329
17	58141
18	115258
19	228486
20	452949
21	897922
22	1780031
23	3528716
24	6995293
25	13867402
26	27490602
27	54497104
28	108034531
29	214166610
30	424561814
31	841647229
32	1668473323
33	3307565365
34	6556885566
35	12998306479
36	25767716954
37	51081672682

[1, 1, 2, 4, 8, 16, 31, 62, 123, 244, 483, 958, 1899, 3765, 7463, 14794, 29329, 58141, 115258, 228486, 452949, 897922, 1780031, 3528716, 6995293, 13867402, 27490602, 54497104, 108034531, 214166610, 424561814, 841647229, 1668473323, 3307565365, 6556885566, 12998306479, 25767716954, 51081672682]

cp's OEIS Frontend

A280543 Expansion of 1/(1 - x - Sum_{k>=2} floor(1/omega(k))*x^k), where omega(k) is the number of distinct prime factors (A001221).

Table of values

List of values