a(n) = n*(a(n-1)*2+1), a(0) = 0.
A067273
a(n) = n*(a(n-1)*2+1), a(0) = 0.
Terms
- a(0) =0a(1) =1a(2) =6a(3) =39a(4) =316a(5) =3165a(6) =37986a(7) =531811a(8) =8508984a(9) =153161721a(10) =3063234430a(11) =67391157471
External references
- oeis: A067273
A067273
a(n) = n*(a(n-1)*2+1), a(0) = 0.