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

A056401

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

Terms

    a(0) =1a(1) =1a(2) =2a(3) =4a(4) =5a(5) =16a(6) =13a(7) =42a(8) =49a(9) =133a(10) =107a(11) =600a(12) =351a(13) =1385a(14) =2164a(15) =4416a(16) =4115a(17) =22043a(18) =14601a(19) =67872a(20) =88360a(21) =209827a(22) =190745a(23) =1074534a(24) =839122a(25) =2796647a(26) =3730532a(27) =11275300a(28) =9587579a(29) =67193198

External references