A279002 The number AE_n of vertex permutations of rank n.

1, 2, 7, 26, 100, 404, 1691, 7254

Offset

3,2

Comments

See Section 7.3 of Baur and Martin (2016) for precise definition.

Links

Table of n, a(n) for n=3..10.

Karin Baur, PP Martin, The fibres of the Scott map on polygon tilings are the flip equivalence classes, arXiv preprint arXiv:1601.05080, 2016

Crossrefs

Row sums of A279003.

Sequence in context: A114121 A049775 A101850 * A176280 A349713 A045868

Adjacent sequences: A278999 A279000 A279001 * A279003 A279004 A279005

Keyword

nonn,more

Author

N. J. A. Sloane, Dec 07 2016

Status

approved