25173996domain: NAppears in sequencesa(n) = 1^n + 3^n + 5^n + 7^n + 9^n + 11^n.at n=7A134008Recurrence a(n) = a(n-2) + n^M for M=7, starting with a(0)=0, a(1)=1.at n=11A231306