132921domain: NAppears in sequencesCentered cube numbers: n^3 + (n+1)^3.at n=40A005898Sum of indices of windows of trapezoidal maps.at n=12A007872Number of nondecreasing integer sequences of length 11 with sum zero and sum of absolute values 2n.at n=20A158145a(n) = 16*n^3 - 36*n^2 + 30*n - 9.at n=20A341043