A244026 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A244026

Analog of A140468, but starting with 5 points, and with the constraint that new points (or lines) are formed only from the intersections of lines (or points) of the same generation.

8

5, 10, 20, 85, 2100

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

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

Shalosh B. Ekhad, Doron Zeilberger, Enumerative Geometrical Genealogy (Or: The Sex Life of Points and Lines), arXiv:1406.5157 [math.CO], (19-June-2014)

CROSSREFS

Related sequences: A140468, A244020-A244026.

Sequence in context: A092407 A056496 A106367 * A244022 A365112 A002791

Adjacent sequences: A244023 A244024 A244025 * A244027 A244028 A244029

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Jun 20 2014

STATUS

approved