a(n) = n^12 - n^10 + n^8 - n^6 + n^4 - n^2 + 1.
A270204
a(n) = n^12 - n^10 + n^8 - n^6 + n^4 - n^2 + 1.
Terms
- a(0) =1a(1) =1a(2) =3277a(3) =478297a(4) =15790321a(5) =234750601a(6) =2117950381a(7) =13564461457a(8) =67662254017a(9) =278985273841a(10) =990099009901
External references
- oeis: A270204