A272402 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A272402 as a simple table

n	a(n)
1	1
2	2
3	3
4	5
5	7
6	10
7	15
8	20
9	31
10	107
11	115
12	290
13	455
14	611
15	669
16	1190
17	2111
18	2147
19	2821
20	4094
21	4616
22	7087
23	7971
24	11416
25	12413
26	21475
27	23719
28	24435
29	32218
30	122625
31	160166
32	190789

[1,2,3,5,7,10,15,20,31,107,115,290,455,611,669, 1190,2111,2147,2821,4094,4616,7087,7971,11416, 12413,21475,23719,24435,32218,122625,160166, 190789]