"BIJ" (reversible, indistinct, labeled) transform of 1,1,1,1,...
A032109
"BIJ" (reversible, indistinct, labeled) transform of 1,1,1,1,...
Terms
- a(0) =1a(1) =1a(2) =2a(3) =7a(4) =38a(5) =271a(6) =2342a(7) =23647a(8) =272918a(9) =3543631a(10) =51123782a(11) =811316287a(12) =14045783798a(13) =263429174191
External references
- oeis: A032109