Number of nX1 0..2 arrays with the counts of all possible adjacent horizontal and vertical pair sum values being within one of each other.

A203594

Number of nX1 0..2 arrays with the counts of all possible adjacent horizontal and vertical pair sum values being within one of each other.

Terms

    a(0) =3a(1) =9a(2) =18a(3) =26a(4) =26a(5) =12a(6) =98a(7) =366a(8) =796a(9) =996a(10) =534a(11) =5366a(12) =23308a(13) =56516a(14) =75120a(15) =41600a(16) =448400a(17) =2053480a(18) =5180820a(19) =7049350a(20) =3952950a(21) =44504530a(22) =210527016a(23) =543851924a(24) =750110424a(25) =423385872a(26) =4900761656a(27) =23667951384a(28) =62074790736a(29) =86372858208

External references