Sierpinski square-based pyramid numbers: a(n) = 5*a(n-1) - (2^(n+1) + 7).
A279511
Sierpinski square-based pyramid numbers: a(n) = 5*a(n-1) - (2^(n+1) + 7).
Terms
- a(0) =5a(1) =14a(2) =55a(3) =252a(4) =1221a(5) =6034a(6) =30035a(7) =149912a(8) =749041a(9) =3744174a(10) =18718815a(11) =93589972a(12) =467941661a(13) =2339691914a(14) =11698426795a(15) =58492068432a(16) =292460211081
External references
- oeis: A279511