Number of nX3 0..2 arrays with every row and column running average nondecreasing rightwards and downwards but some diagonal running average having a decrease.

A201190

Number of nX3 0..2 arrays with every row and column running average nondecreasing rightwards and downwards but some diagonal running average having a decrease.

Terms

    a(0) =0a(1) =1a(2) =8a(3) =45a(4) =225a(5) =1005a(6) =4104a(7) =15592a(8) =55914a(9) =191522a(10) =632129a(11) =2024359a(12) =6323087a(13) =19343102a(14) =58140702a(15) =172156273a(16) =503228165a(17) =1454641954a(18) =4164043593a(19) =11818459242a(20) =33291210601a(21) =93152197045a(22) =259101275859a(23) =716858442400

External references