Expansion of e.g.f. Product_{k>=1} (1 + x^k/k!)^(k*(k+1)/2).
A371481
Expansion of e.g.f. Product_{k>=1} (1 + x^k/k!)^(k*(k+1)/2).
Terms
- a(0) =1a(1) =1a(2) =3a(3) =15a(4) =52a(5) =335a(6) =2031a(7) =12880a(8) =102614a(9) =802443a(10) =6956995a(11) =64721756a(12) =633754320a(13) =6551212057a(14) =71375943289a(15) =820250162880
External references
- oeis: A371481