Number of primitive (period n) step cyclic shifted sequence structures using a maximum of six different symbols.

A056443

Number of primitive (period n) step cyclic shifted sequence structures using a maximum of six different symbols.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =5a(4) =7a(5) =33a(6) =35a(7) =212a(8) =449a(9) =2991a(10) =5651a(11) =74919a(12) =126757a(13) =1370979a(14) =5653844a(15) =31440622a(16) =87796361a(17) =1319721998a(18) =2491714133a(19) =31893714060a(20) =121274777190a(21) =832622957033

External references