Used with permission. Copyright © Rainer Typke [www.crossnumber.com]
A: A down squared.
E: a palindrome.
F: this prime number equals A down divided by B down.
G: K across - F across.
I: a multiple of J down.
K: M down + L across.
L: the digit sum of A down.
N: a square number.
O: the sixth power of the digit sum of N down.
A: the reverse of a prime number.
B: subtract B down from A down and divide the result by B down. The final result equals N across.
C: a prime number.
D: the seventh power of the digit sum of N across.
H: J down + L across.
J: this palindrome is a multiple of F across.
M: N down + F across.
N: a multiple of L across.