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A220842 Number of admissable 2-dimensional lattice patterns of type B(2,3). 1
2, 4, 7, 14, 25, 50, 90, 160, 320, 584, 1039, 1861, 3722, 6774 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

See Ban et al. (2012) for precise definition.

LINKS

Table of n, a(n) for n=1..14.

Jung-Chao Ban, Wen-Guei Hu, and Song-Sun Lin, Pattern generation problems arising in multiplicative integer systems, arXiv preprint arXiv:1207.7154, 2012

CROSSREFS

Cf. A220843.

Sequence in context: A072810 A167606 A065455 * A026010 A088813 A097596

Adjacent sequences:  A220839 A220840 A220841 * A220843 A220844 A220845

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Dec 23 2012

STATUS

approved

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Last modified August 11 06:10 EDT 2020. Contains 336422 sequences. (Running on oeis4.)