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A195811 Smallest possible largest number of a 5 by n average array where repetitions are not allowed with diagonals. 0
3087, 353073, 2132027, 268488939, 1753185101, 1972426351, 3443919804825, 6614878861143, 36878438722065, 500316181326089640, 8297069251057289337, 6347210584170775952, 2484311052067594484723 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,1

COMMENTS

Here, an average array is an array of positive integers such that each number is the average of the numbers in its horizontally, vertically and diagonally adjacent cells.

LINKS

Table of n, a(n) for n=3..15.

Erich Friedman, Problem of the month March 1999

CROSSREFS

Sequence in context: A284660 A234781 A045079 * A268578 A268862 A277786

Adjacent sequences:  A195808 A195809 A195810 * A195812 A195813 A195814

KEYWORD

nonn

AUTHOR

Kausthub Gudipati, Sep 24 2011

STATUS

approved

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Last modified October 27 14:42 EDT 2021. Contains 348282 sequences. (Running on oeis4.)