Number of 10 X 10 arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to n.

A156403

Number of 10 X 10 arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to n.

Terms

    a(0) =1a(1) =312a(2) =13290a(3) =156128a(4) =709332a(5) =1578064a(6) =4220548a(7) =17605696a(8) =42440517a(9) =56568904a(10) =102471151a(11) =332810880a(12) =624439948a(13) =662224128a(14) =977782336a(15) =2727888448a(16) =4701559354a(17) =4686068520a(18) =5468265896a(19) =13526490400a(20) =23873894500a(21) =23882769984a(22) =23258023832

External references