Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 22.
A156478
Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 22.
Terms
- a(0) =2a(1) =44a(2) =40a(3) =7838a(4) =31206a(5) =5100574a(6) =62202832a(7) =23258023832a(8) =999916709280
External references
- oeis: A156478