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A184242 Number of strings of numbers x(i=1..4) in 0..n with sum i^2*x(i)^2 equal to n^2*16 2
1, 1, 1, 1, 2, 2, 2, 1, 5, 3, 3, 2, 4, 4, 6, 1, 7, 8, 6, 3, 18, 8, 7, 2, 18, 7, 24, 4, 10, 21, 20, 1, 31, 13, 22, 8, 27, 15, 29, 3, 31, 38, 30, 8, 65, 20, 27, 2, 50, 32, 68, 7, 41, 59, 61, 4, 85, 30, 46, 21, 63, 40, 108, 1, 72, 78, 74, 13, 98, 73, 59, 8, 83, 55, 151, 15, 92, 104, 85, 3, 171 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

COMMENTS

Row 4 of A184240

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..200

EXAMPLE

All solutions for n=5

..0....0

..0....0

..4....0

..4....5

CROSSREFS

Sequence in context: A247719 A131308 A261360 * A307739 A109978 A114293

Adjacent sequences:  A184239 A184240 A184241 * A184243 A184244 A184245

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 10 2011

STATUS

approved

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Last modified August 11 09:52 EDT 2020. Contains 336423 sequences. (Running on oeis4.)