4330625domain: NAppears in sequencesa(n) = A275706(n)^2 + A276688(n)^2 = [n]_{1+i}! * [n]_{1-i}!, where [n]_q! is the q-factorial, i = sqrt(-1).at n=6A276755a(n) is the smallest centered square number with exactly n prime factors (counted with multiplicity).at n=7A359235