Number of step cyclic shifted sequence structures of length n using an infinite alphabet.
A288628
Number of step cyclic shifted sequence structures of length n using an infinite alphabet.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =7a(4) =8a(5) =37a(6) =37a(7) =223a(8) =468a(9) =3203a(10) =6398a(11) =93103a(12) =178663a(13) =2282131a(14) =11561896a(15) =82120878a(16) =304719416a(17) =6316222138a(18) =17055376113a(19) =323332552319
External references
- oeis: A288628