a(n) = (3/n)*Sum_{k=0..n-1} A245769(k)^2.
A268136
a(n) = (3/n)*Sum_{k=0..n-1} A245769(k)^2.
Terms
- a(0) =3a(1) =3a(2) =51a(3) =507a(4) =4947a(5) =58243a(6) =841443a(7) =14240763a(8) =269512483a(9) =5524472451a(10) =120183938835
External references
- oeis: A268136