Number of nX1 0..1 arrays with the counts of all possible adjacent horizontal and vertical pair sum values being within one of each other.

A203631

Number of nX1 0..1 arrays with the counts of all possible adjacent horizontal and vertical pair sum values being within one of each other.

Terms

    a(0) =2a(1) =4a(2) =4a(3) =2a(4) =8a(5) =12a(6) =6a(7) =32a(8) =56a(9) =32a(10) =160a(11) =270a(12) =150a(13) =840a(14) =1512a(15) =882a(16) =4704a(17) =8232a(18) =4704a(19) =26880a(20) =48960a(21) =28800a(22) =158400a(23) =282150a(24) =163350a(25) =943800a(26) =1730300a(27) =1022450a(28) =5725720a(29) =10306296

External references