a(n+1) = Sum_{k=0..n, n XOR k <= n} a(k)*a(n XOR k) for n>=0 with a(0)=1.
A200337
a(n+1) = Sum_{k=0..n, n XOR k <= n} a(k)*a(n XOR k) for n>=0 with a(0)=1.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =4a(4) =12a(5) =24a(6) =72a(7) =384a(8) =1104a(9) =2208a(10) =6624a(11) =35328a(12) =101568a(13) =28421376a(14) =67326336a(15) =366139392a(16) =983761152a(17) =1967522304a(18) =5902566912a(19) =31480356864a(20) =90506025984
External references
- oeis: A200337