A209815 - cp's OEIS frontend

A209815 Number of partitions of 2n in which every part is also, the number of partitions of 2 into rational numbers a/b such that 0 and b divides n.

n	a(n)
1	0
2	1
3	4
4	10
5	23
6	47
7	90
8	164
9	288
10	488
11	807
12	1303
13	2063
14	3210
15	4920
16	7434
17	11098
18	16380
19	23928
20	34624
21	49668
22	70667
23	99795
24	139935
25	194930
26	269857
27	371413
28	508363
29	692195
30	937838
31	1264685
32	1697810
33	2269557
34	3021462
35	4006812
36	5293650
37	6968730
38	9142306
39	11954194

[0, 1, 4, 10, 23, 47, 90, 164, 288, 488, 807, 1303, 2063, 3210, 4920, 7434, 11098, 16380, 23928, 34624, 49668, 70667, 99795, 139935, 194930, 269857, 371413, 508363, 692195, 937838, 1264685, 1697810, 2269557, 3021462, 4006812, 5293650, 6968730, 9142306, 11954194]

cp's OEIS Frontend

A209815 Number of partitions of 2n in which every part is also, the number of partitions of 2 into rational numbers a/b such that 0 and b divides n.

Table of values

List of values