Number of primitive (aperiodic) step shifted (decimated) sequences using a maximum of two different symbols.

A056381

Number of primitive (aperiodic) step shifted (decimated) sequences using a maximum of two different symbols.

Terms

    a(0) =2a(1) =2a(2) =4a(3) =8a(4) =10a(5) =32a(6) =26a(7) =84a(8) =98a(9) =266a(10) =214a(11) =1200a(12) =702a(13) =2770a(14) =4328a(15) =8832a(16) =8230a(17) =44086a(18) =29202a(19) =135744a(20) =176720a(21) =419654a(22) =381490a(23) =2149068a(24) =1678244a(25) =5593294a(26) =7461064a(27) =22550600a(28) =19175158a(29) =134386396

External references