A280238 - cp's OEIS frontend

A280238 Expansion of 1/(1 - Sum_{k>=2} floor(bigomega(k)/2)floor(2/bigomega(k))x^k), where bigomega(k) is the number of prime divisors of k counted with multiplicity (A001222).

n	a(n)
0	1
1	0
2	0
3	0
4	1
5	0
6	1
7	0
8	1
9	1
10	3
11	0
12	2
13	2
14	6
15	3
16	6
17	3
18	11
19	10
20	16
21	10
22	23
23	23
24	40
25	34
26	52
27	52
28	93
29	94
30	130
31	133
32	209
33	234
34	330
35	352
36	488
37	570
38	804
39	909
40	1198
41	1405
42	1918
43	2283
44	2980
45	3512
46	4622
47	5636
48	7340
49	8811
50	11321
51	13864
52	17937
53	21957
54	27936
55	34262
56	43857
57	54290
58	68915
59	84940
60	107685
61	133811
62	169615
63	210375
64	265305

[1, 0, 0, 0, 1, 0, 1, 0, 1, 1, 3, 0, 2, 2, 6, 3, 6, 3, 11, 10, 16, 10, 23, 23, 40, 34, 52, 52, 93, 94, 130, 133, 209, 234, 330, 352, 488, 570, 804, 909, 1198, 1405, 1918, 2283, 2980, 3512, 4622, 5636, 7340, 8811, 11321, 13864, 17937, 21957, 27936, 34262, 43857, 54290, 68915, 84940, 107685, 133811, 169615, 210375, 265305]

cp's OEIS Frontend

A280238 Expansion of 1/(1 - Sum_{k>=2} floor(bigomega(k)/2)floor(2/bigomega(k))x^k), where bigomega(k) is the number of prime divisors of k counted with multiplicity (A001222).

Table of values

List of values

cp's OEIS Frontend

A280238 Expansion of 1/(1 - Sum_{k>=2} floor(bigomega(k)/2)*floor(2/bigomega(k))*x^k), where bigomega(k) is the number of prime divisors of k counted with multiplicity (A001222).

Table of values

List of values

A280238 Expansion of 1/(1 - Sum_{k>=2} floor(bigomega(k)/2)floor(2/bigomega(k))x^k), where bigomega(k) is the number of prime divisors of k counted with multiplicity (A001222).