square number(A across)
palindrome(C across)
cubic number(F across)
square number(reverse(H across))
cubic number(I across)
K across = B down + 1
palindrome(M across)
square number(N across)
prime number(P across)
cubic number(A down)
prime number(B down)
cubic number(D down)
E down = P across + D down
cubic number(G down)
cubic number(J down)
square number(L down)
prime number(reverse(O down))