Number of n X n arrays of squares of integers with every (n-2) X (n-2) subblock summing to 5 and every element equal to at least one neighbor.
A146126
Number of n X n arrays of squares of integers with every (n-2) X (n-2) subblock summing to 5 and every element equal to at least one neighbor.
Terms
- a(0) =0a(1) =235a(2) =9716a(3) =43201a(4) =125064a(5) =290427a(6) =583948a(7) =1060251a(8) =1783944a(9) =2829619a(10) =4281852a(11) =6235203a(12) =8794216a(13) =12073419a(14) =16197324a(15) =21300427a(16) =27527208a(17) =35032131a(18) =43979644a(19) =54544179a(20) =66910152
External references
- oeis: A146126