Number of nX6 0..1 arrays with every element equal to 0, 1, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

A302513

Number of nX6 0..1 arrays with every element equal to 0, 1, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

Terms

    a(0) =13a(1) =13a(2) =52a(3) =80a(4) =199a(5) =458a(6) =1088a(7) =2651a(8) =6257a(9) =14765a(10) =35292a(11) =84261a(12) =200040a(13) =475278a(14) =1132373a(15) =2696179a(16) =6411133a(17) =15251746a(18) =36304757a(19) =86394322a(20) =205538228a(21) =489069395a(22) =1163851093a(23) =2769397039a(24) =6589505584a(25) =15679835445a(26) =37311095302a(27) =88781699786

External references