a(1)=1, a(n) = n*22^(n-1) + a(n-1).
A014940
a(1)=1, a(n) = n*22^(n-1) + a(n-1).
Terms
- a(0) =1a(1) =45a(2) =1497a(3) =44089a(4) =1215369a(5) =32137161a(6) =825796489a(7) =20780659593a(8) =514663521417
External references
- oeis: A014940
A014940
a(1)=1, a(n) = n*22^(n-1) + a(n-1).