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A195753 Smallest possible largest number in a 3 by n average array where repetitions are not allowed without diagonals. 0
8, 30, 74, 269, 356, 3309, 11178, 10351, 28028, 519141, 56511, 6511653, 4798118, 3319643 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

COMMENTS

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

LINKS

Table of n, a(n) for n=2..15.

Erich Friedman, Problem of the month March 1999

CROSSREFS

Sequence in context: A004639 A131769 A055832 * A100175 A063489 A299284

Adjacent sequences:  A195750 A195751 A195752 * A195754 A195755 A195756

KEYWORD

nonn

AUTHOR

Kausthub Gudipati, Sep 23 2011

STATUS

approved

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Last modified February 17 14:12 EST 2018. Contains 299296 sequences. (Running on oeis4.)