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A203872 as a simple table

n a(n)
1 55
2 1135
3 23815
4 500095
5 10501975
6 220541455
7 4631370535
8 97258781215
9 2042434405495
10 42891122515375
11 900713572822855
12 18914985029279935
13 397214685614878615
14 8341508397912450895
15 175171676356161468775 

[55,1135,23815,500095,10501975,220541455,
 4631370535,97258781215,2042434405495,
 42891122515375,900713572822855,18914985029279935,
 397214685614878615,8341508397912450895,
 175171676356161468775]

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Last modified September 2 13:09 EDT 2024. Contains 375613 sequences. (Running on oeis4.)