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A216643 Number of nondecreasing arrays of n 1..n integers with the sum of their 5th powers equal to sum(i^5,i=1..n) 0
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 4, 8, 21, 45, 159, 483, 1397, 4252, 12860 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,12

COMMENTS

Column 5 of A216645

LINKS

Table of n, a(n) for n=1..21.

EXAMPLE

All solutions for n=12

..1....2

..2....3

..3....3

..4....3

..5....5

..6....5

..7....6

..8....8

..9...10

.10...11

.11...11

.12...11

CROSSREFS

Sequence in context: A309868 A059731 A001315 * A002040 A162110 A108071

Adjacent sequences:  A216640 A216641 A216642 * A216644 A216645 A216646

KEYWORD

nonn

AUTHOR

R. H. Hardin Sep 11 2012

STATUS

approved

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Last modified December 9 00:32 EST 2019. Contains 329871 sequences. (Running on oeis4.)