Number of (n+2)X(2+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal median nondecreasing horizontally and vertically.
A254888
Number of (n+2)X(2+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal median nondecreasing horizontally and vertically.
Terms
- a(0) =2540a(1) =8944a(2) =35296a(3) =149931a(4) =516726a(5) =1662439a(6) =5009638a(7) =14250367a(8) =38915696a(9) =101553961a(10) =257394529a(11) =637368852a(12) =1541978175a(13) =3659178294a(14) =8544065101a(15) =19675806469a(16) =44760978714a(17) =100769983174a(18) =224782052971a(19) =497397948395
External references
- oeis: A254888