Number of 0..n arrays of length 6 with each element differing from at least one neighbor by 2 or more.

A221526

Number of 0..n arrays of length 6 with each element differing from at least one neighbor by 2 or more.

Terms

    a(0) =0a(1) =10a(2) =274a(3) =2172a(4) =9982a(5) =33380a(6) =90684a(7) =212812a(8) =447962a(9) =867012a(10) =1569640a(11) =2691164a(12) =4410102a(13) =6956452a(14) =10620692a(15) =15763500a(16) =22826194a(17) =32341892a(18) =44947392a(19) =61395772a(20) =82569710a(21) =109495524a(22) =143357932a(23) =185515532a(24) =237517002a(25) =301118020a(26) =378298904

External references