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A232470 Second column of A232467. 2
1, 3, 21, 257, 6203 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

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

Craig S. Kaplan, Grid-based decorative corners, in Proceedings of Bridges 2013: Mathematics, Music, Art, ..., 2013, pp. 317-324.

CROSSREFS

Cf. A232467-A232471.

Sequence in context: A197716 A317059 A262939 * A251573 A265002 A012131

Adjacent sequences:  A232467 A232468 A232469 * A232471 A232472 A232473

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Nov 24 2013

STATUS

approved

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Last modified October 16 11:25 EDT 2018. Contains 316263 sequences. (Running on oeis4.)