a(n)^2 is the smallest square containing exactly n 7's.
A048352
a(n)^2 is the smallest square containing exactly n 7's.
Terms
- a(0) =24a(1) =76a(2) =424a(3) =3576a(4) =8819a(5) =88924a(6) =278874a(7) =2116076a(8) =8819154a(9) =61463576a(10) =277450424a(11) =526087234a(12) =1943470576a(13) =21858013924a(14) =199694210926a(15) =260341642412
External references
- oeis: A048352