Sequence with Hankel transform given by 2^C(n,2)*2^floor(n/3).
A171450
Sequence with Hankel transform given by 2^C(n,2)*2^floor(n/3).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =5a(4) =15a(5) =54a(6) =231a(7) =1133a(8) =6082a(9) =34397a(10) =200063a(11) =1180798a(12) =7023103a(13) =41946973a(14) =251144922a(15) =1505966757a(16) =9040214223a(17) =54314351878a(18) =326565963479
External references
- oeis: A171450