Number of n X n arrays of squares of integers with every (n-3)X(n-3) subblock summing to 4.
A159358
Number of n X n arrays of squares of integers with every (n-3)X(n-3) subblock summing to 4.
Terms
- a(0) =21a(1) =10863a(2) =485580a(3) =5524819a(4) =34063605a(5) =147025901a(6) =501203288a(7) =1443386025a(8) =3661046269a(9) =8408644815a(10) =17831404296a(11) =35411163363a(12) =66561697945a(13) =119403667269a(14) =205752113900a(15) =342352218641a(16) =552401782713a(17) =867401681215
External references
- oeis: A159358