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A195749 Smallest possible largest number in a 6 by n average array where repetitions are allowed without diagonals. 0
19, 63, 2816, 1245, 143, 70668, 74283746, 622677, 34716123, 4522574, 82212839, 1010388604, 34860663827, 2227981245 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

COMMENTS

Here, an average array is an array with positive integers such that each number in the array is the average of 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: A262920 A183455 A183340 * A093485 A226633 A156967

Adjacent sequences:  A195746 A195747 A195748 * A195750 A195751 A195752

KEYWORD

nonn

AUTHOR

Kausthub Gudipati, Sep 23 2011

STATUS

approved

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Last modified October 30 05:44 EDT 2020. Contains 338077 sequences. (Running on oeis4.)