a(n) = A153880(A265905(n)); also the first differences of A265905.
A265906
a(n) = A153880(A265905(n)); also the first differences of A265905.
Terms
- a(0) =2a(1) =8a(2) =38a(3) =242a(4) =1688a(5) =13238a(6) =121442a(7) =1212968a(8) =13211798a(9) =160076282a(10) =2080120448a(11) =28952201678a(12) =436718865962
External references
- oeis: A265906