Number of (n+2)X(4+2) 0..1 arrays with every 2X2 and 3X3 subblock diagonal maximum minus antidiagonal minimum unequal to its neighbors horizontally and vertically.
A253363
Number of (n+2)X(4+2) 0..1 arrays with every 2X2 and 3X3 subblock diagonal maximum minus antidiagonal minimum unequal to its neighbors horizontally and vertically.
Terms
- a(0) =976a(1) =1536a(2) =5280a(3) =8904a(4) =23936a(5) =53128a(6) =112864a(7) =286888a(8) =563680a(9) =1423176a(10) =2930016a(11) =6871944a(12) =15255904a(13) =33827528a(14) =78045536a(15) =171672968a(16) =393400928a(17) =883617736a(18) =1976015712a(19) =4530604552a(20) =9969715808a(21) =23004361288a(22) =50570530144a(23) =116107771016
External references
- oeis: A253363