a(n) = ((1 + sqrt(n))^n - (1 - sqrt(n))^n)/(2*sqrt(n)).
A357502
a(n) = ((1 + sqrt(n))^n - (1 - sqrt(n))^n)/(2*sqrt(n)).
Terms
- a(0) =1a(1) =2a(2) =6a(3) =20a(4) =80a(5) =342a(6) =1624a(7) =8136a(8) =43776a(9) =246410a(10) =1463264a(11) =9033180a(12) =58200064a(13) =387905182a(14) =2679200640a(15) =19068105488a(16) =139929124864
External references
- oeis: A357502