A155019 - 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

A155019 as a simple table

n	a(n)
0	0
1	1
2	362
3	11363
4	131072
5	873464
6	4114202
7	15252229
8	47453132
9	129140163
10	316227766
11	710947978
12	1489500287
13	2941158941
14	5521897022
15	9926032708
16	17179869184
17	28761784747
18	46753733110
19	74029634996
20	114486680447

[0,1,362,11363,131072,873464,4114202,15252229, 47453132,129140163,316227766,710947978,1489500287, 2941158941,5521897022,9926032708,17179869184, 28761784747,46753733110,74029634996,114486680447]