A008388 - 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

A008388 as a simple table

n	a(n)
0	1
1	43
2	505
3	3067
4	12559
5	39733
6	104959
7	242845
8	507781
9	980407
10	1775005
11	3047815
12	5006275
13	7919185
14	12127795
15	18057817
16	26232361
17	37285795
18	51978529
19	71212723
20	96048919
21	127723597
22	167667655

[1,43,505,3067,12559,39733,104959,242845,507781, 980407,1775005,3047815,5006275,7919185,12127795, 18057817,26232361,37285795,51978529,71212723, 96048919,127723597,167667655]