Number of nX4 0..1 arrays with every element unequal to 1, 2, 3 or 6 king-move adjacent elements, with upper left element zero.

A304145

Number of nX4 0..1 arrays with every element unequal to 1, 2, 3 or 6 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =2a(1) =33a(2) =25a(3) =61a(4) =157a(5) =117a(6) =244a(7) =936a(8) =733a(9) =1513a(10) =5788a(11) =5148a(12) =9643a(13) =36537a(14) =36384a(15) =63504a(16) =232477a(17) =257097a(18) =425332a(19) =1489062a(20) =1805221a(21) =2880515a(22) =9586350a(23) =12586970a(24) =19638585a(25) =61988663a(26) =87180006a(27) =134415114a(28) =402438825a(29) =600295543

External references