Column 0 of triangle A185624; also, equals row sums of triangle A185620.
A185625
Column 0 of triangle A185624; also, equals row sums of triangle A185620.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =6a(4) =18a(5) =79a(6) =463a(7) =3396a(8) =30073a(9) =314037a(10) =3796561a(11) =52332869a(12) =812013163a(13) =14029926801a(14) =267461387125
External references
- oeis: A185625