a(n) = Sum_{k=0..floor((n-1)/3)} 2^k * |Stirling1(n,3*k+1)|.
A357832
a(n) = Sum_{k=0..floor((n-1)/3)} 2^k * |Stirling1(n,3*k+1)|.
Terms
- a(0) =0a(1) =1a(2) =1a(3) =2a(4) =8a(5) =44a(6) =290a(7) =2194a(8) =18690a(9) =177072a(10) =1848048a(11) =21079332a(12) =260998584a(13) =3487438476a(14) =50030096844a(15) =767092681992
External references
- oeis: A357832