Number of chiral pairs of length n words with integer entries that cover an initial interval of positive integers.
A327091
Number of chiral pairs of length n words with integer entries that cover an initial interval of positive integers.
Terms
- a(0) =0a(1) =1a(2) =5a(3) =36a(4) =264a(5) =2335a(6) =23609a(7) =272880a(8) =3543360a(9) =51123511a(10) =811313945a(11) =14045781456a(12) =263429150544
External references
- oeis: A327091