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A161359 Number of squares in inner rectangle described in A168339. 2
0, 1, 3, 4, 4, 6, 8, 7, 9, 10, 10, 12, 12, 14, 15, 16, 18, 17, 21, 20, 21, 23, 22, 24, 24, 28, 27, 28, 31, 30, 32, 31, 33, 36, 35, 36, 40, 39, 38, 40, 40, 42, 45, 44, 45, 45, 49, 48, 50, 49, 53, 52, 52, 54, 55, 56, 60, 59, 58, 60, 60, 64, 63, 66, 65, 66, 68, 67, 71, 70, 72, 71 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..72.

FORMULA

a(n) = A168339(n) - 2*(A161357(n)+A161358(n)) - 4.

CROSSREFS

Cf. A168339, A161369.

Sequence in context: A111611 A100478 A112376 * A224212 A078490 A282847

Adjacent sequences:  A161356 A161357 A161358 * A161360 A161361 A161362

KEYWORD

nonn

AUTHOR

R. H. Hardin and N. J. A. Sloane, Nov 27 2009

EXTENSIONS

More terms (variables cost-2*(dimm+dimn)-4 of the C program in A168339) added by R. J. Mathar, Mar 06 2010

STATUS

approved

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Last modified July 5 00:40 EDT 2020. Contains 335457 sequences. (Running on oeis4.)