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A232471 Main diagonal of A232467. 4
1, 1, 2, 9, 75, 1355 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..5.

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

CROSSREFS

Cf. A232467-A232470.

Sequence in context: A197082 A243054 A080638 * A277181 A105785 A245406

Adjacent sequences:  A232468 A232469 A232470 * A232472 A232473 A232474

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Nov 24 2013

STATUS

approved

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Last modified February 18 17:08 EST 2018. Contains 299325 sequences. (Running on oeis4.)