A243669 Number of hypo-Sylvester classes of 3-packed words of degree n.

1, 5, 28, 158, 892

Offset

1,2

Comments

See Novelli-Thibon (2014) for precise definition.

Links

Table of n, a(n) for n=1..5.

J.-C. Novelli, J.-Y. Thibon, Hopf Algebras of m-permutations,(m+1)-ary trees, and m-parking functions, arXiv preprint arXiv:1403.5962, 2014. See Fig. 18.

Crossrefs

Sequence in context: A005785 A027912 A378462 * A327999 A254538 A090040

Adjacent sequences: A243666 A243667 A243668 * A243670 A243671 A243672

Keyword

nonn,more

Author

N. J. A. Sloane, Jun 14 2014

Status

approved