A fourth-order divisibility sequence: a(n) = (1/14)*(Pell(4*n) + Pell(2*n)).
A273626
A fourth-order divisibility sequence: a(n) = (1/14)*(Pell(4*n) + Pell(2*n)).
Terms
- a(0) =1a(1) =30a(2) =995a(3) =33660a(4) =1142629a(5) =38810970a(6) =1318402631a(7) =44786716920
External references
- oeis: A273626