74120domain: NAppears in sequencesNearest integer to (n/2)^4.at n=33A011863n^4 - 1 divided by its largest fourth power divisor.at n=31A128251Sum of even products minus sum of odd products of different pairs of numbers from 1 to n.at n=32A134449a(n) = floor((n + 1/2)^4).at n=16A219086