Number of n X n arrays of squares of integers summing to 7 with every element equal to at least one neighbor.

A146201

Number of n X n arrays of squares of integers summing to 7 with every element equal to at least one neighbor.

Terms

    a(0) =0a(1) =12a(2) =1640a(3) =23650a(4) =129116a(5) =457330a(6) =1265468a(7) =2979098a(8) =6251260a(9) =12030146a(10) =21635420a(11) =36843178a(12) =59979548a(13) =94022930a(14) =142714876a(15) =210679610a(16) =303552188a(17) =428115298a(18) =592444700a(19) =806063306

External references