A238993 - OEIS

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A238993 as a simple table

n	a(n)
1	31
2	955
3	25601
4	638779
5	15482441
6	370847909
7	8839918663
8	210298050207
9	4998886061169
10	118785304972327
11	2822242684232115
12	67050092047403637
13	1592922871540500091
14	37842951297176471361
15	899028950928529166077

[31,955,25601,638779,15482441,370847909, 8839918663,210298050207,4998886061169, 118785304972327,2822242684232115, 67050092047403637,1592922871540500091, 37842951297176471361,899028950928529166077]

[31,955,25601,638779,15482441,370847909,
 8839918663,210298050207,4998886061169,
 118785304972327,2822242684232115,
 67050092047403637,1592922871540500091,
 37842951297176471361,899028950928529166077]