a(n) = 4^n*Euler(n, 1/4)*2^(valuation_{2}(n + 1)).
A339058
a(n) = 4^n*Euler(n, 1/4)*2^(valuation_{2}(n + 1)).
Terms
- a(0) =1a(1) =-2a(2) =-3a(3) =44a(4) =57a(5) =-722a(6) =-2763a(7) =196888a(8) =250737a(9) =-5746082a(10) =-36581523a(11) =2049374444a(12) =7828053417a(13) =-259141449842
External references
- oeis: A339058