Define Tuba numbers T(k,d,b) (0 <= d < b) by Sum_{j=0..k} binomial(k,j)*floor((k+d)/b)^(k-j)*T(j,d,b) = delta(k,0). Sequence gives T(n,0,2).
A124453
Define Tuba numbers T(k,d,b) (0 <= d < b) by Sum_{j=0..k} binomial(k,j)*floor((k+d)/b)^(k-j)*T(j,d,b) = delta(k,0). Sequence gives T(n,0,2).
Terms
- a(0) =1a(1) =0a(2) =-1a(3) =2a(4) =-8a(5) =48a(6) =-378a(7) =3672a(8) =-42368a(9) =565760a(10) =-8579000a(11) =145590000a(12) =-2733455808a(13) =56248698240
External references
- oeis: A124453