665445domain: NAppears in sequencesa(n) = 1^n + 3^n + 5^n + 7^n + 9^n.at n=6A134007Recurrence a(n) = a(n-2) + n^M for M=6, starting with a(0)=0, a(1)=1.at n=9A231305Sum of sixth powers of odd numbers.at n=4A259322