a(n) = Sum_{k=0..floor(n/3)} n^k * Stirling1(n,3*k).
A356362
a(n) = Sum_{k=0..floor(n/3)} n^k * Stirling1(n,3*k).
Terms
- a(0) =1a(1) =0a(2) =0a(3) =3a(4) =-24a(5) =175a(6) =-1314a(7) =10339a(8) =-84448a(9) =696429a(10) =-5444700a(11) =32897601a(12) =53444304a(13) =-8071238721a(14) =235927045536
External references
- oeis: A356362