A042830 - 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

A042830 as a simple table

n	a(n)
0	30
1	31
2	123
3	1015
4	1138
5	2153
6	14056
7	44321
8	147019
9	191340
10	721039
11	912379
12	1633418
13	2545797
14	6725012
15	204296157
16	415317326
17	619613483
18	1034930809
19	1654544292
20	5998563685
21	7653107977
22	28957887616

[30,31,123,1015,1138,2153,14056,44321,147019, 191340,721039,912379,1633418,2545797,6725012, 204296157,415317326,619613483,1034930809, 1654544292,5998563685,7653107977,28957887616]