63217domain: NAppears in sequencesA000041(n) - A000203(n).at n=42A086738a(n) = (n^6 - 30*n^4 + 45*n^3 + 206*n^2 - 576*n + 384)/6.at n=7A135917Alternating partial sums of the Floor-Sqrt transform of central binomial coefficients.at n=18A192659Number of partitions of n^2 into a square number of square parts.at n=19A344708