A253115 - 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

A253115 as a simple table

n	a(n)
1	4619
2	28600
3	426571
4	3950239
5	28256241
6	201911670
7	1873418602
8	7421334529
9	54446797689
10	133685068828
11	745867325532
12	1354111174816
13	5818864244979
14	8824640573225
15	30688212938784
16	41602065842866
17	122867434214623

[4619,28600,426571,3950239,28256241,201911670, 1873418602,7421334529,54446797689,133685068828, 745867325532,1354111174816,5818864244979, 8824640573225,30688212938784,41602065842866, 122867434214623]