A346489 - 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

A346489 as a simple table

n	a(n)
1	1
2	2
3	3
4	4
5	10
6	19
7	24
8	46
9	109
10	430
11	669
12	3245
13	6057
14	7837
15	33067
16	77777
17	476643
18	601855
19	3556550
20	5216954
21	15739663
22	41146179
23	189961757
24	882206624
25	3325059246
26	15581005618
27	23007498153
28	37607875618

[1,2,3,4,10,19,24,46,109,430,669,3245,6057,7837, 33067,77777,476643,601855,3556550,5216954, 15739663,41146179,189961757,882206624,3325059246, 15581005618,23007498153,37607875618]