Number of nX3 0..1 arrays with every element unequal to 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.

A305017

Number of nX3 0..1 arrays with every element unequal to 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =0a(1) =5a(2) =14a(3) =73a(4) =387a(5) =2000a(6) =10487a(7) =54957a(8) =287218a(9) =1503959a(10) =7869877a(11) =41184270a(12) =215540219a(13) =1127976673a(14) =5903110936a(15) =30893060733a(16) =161673863609a(17) =846095754528

External references