a(n) equals the square of the n-th partial sum added to twice the n-th partial sum of the squares, divided by a(n-1), for all n>=1, with a(0)=1, a(1)=1.
A088131
a(n) equals the square of the n-th partial sum added to twice the n-th partial sum of the squares, divided by a(n-1), for all n>=1, with a(0)=1, a(1)=1.
Terms
- a(0) =1a(1) =1a(2) =8a(3) =29a(4) =115a(5) =452a(6) =1779a(7) =7001a(8) =27552a(9) =108429a(10) =426715a(11) =1679308a(12) =6608803a(13) =26008497a(14) =102354680a(15) =402809917a(16) =1585231171a(17) =6238570004a(18) =24551470099a(19) =96620649225a(20) =380244026896
External references
- oeis: A088131