Number of step cyclic shifted sequence structures using exactly five different symbols.

A056437

Number of step cyclic shifted sequence structures using exactly five different symbols.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =0a(4) =1a(5) =3a(6) =6a(7) =52a(8) =148a(9) =1140a(10) =2306a(11) =30121a(12) =48476a(13) =478957a(14) =1762917a(15) =8601630a(16) =20789656a(17) =268188642a(18) =431583572a(19) =4685759111a(20) =15045763312a(21) =86991023001a(22) =190548007556

External references