Number of 5Xn arrays containing n copies of 0..5-1 with every element equal to or 1 greater than any west, northeast or northwest neighbors modulo 5 and the upper left element equal to 0.

A267427

Number of 5Xn arrays containing n copies of 0..5-1 with every element equal to or 1 greater than any west, northeast or northwest neighbors modulo 5 and the upper left element equal to 0.

Terms

    a(0) =24a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =1a(7) =1a(8) =1a(9) =9a(10) =65a(11) =624a(12) =5309a(13) =38578a(14) =239701a(15) =1309340a(16) =6447890a(17) =29143104a(18) =122531502a(19) =484952549a(20) =1822769330a(21) =6559659490a(22) =22756224972a(23) =76595595448a(24) =251727333628a(25) =813474158085

External references