Number of (n+1) X (4+1) 0..1 arrays with no 2 X 2 subblock having the sum of its diagonal elements greater than the maximum of its antidiagonal elements.
A251124
Number of (n+1) X (4+1) 0..1 arrays with no 2 X 2 subblock having the sum of its diagonal elements greater than the maximum of its antidiagonal elements.
Terms
- a(0) =72a(1) =117a(2) =173a(3) =266a(4) =401a(5) =612a(6) =938a(7) =1452a(8) =2266a(9) =3565a(10) =5646a(11) =8991a(12) =14379a(13) =23071a(14) =37107a(15) =59788a(16) =96455a(17) =155750a(18) =251656a(19) =406798a(20) =657784a(21) =1063847a(22) =1720828a(23) =2783801a(24) =4503681a(25) =7286457a(26) =11789033a(27) =19074302a(28) =30862061a(29) =49935000
External references
- oeis: A251124