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A055075
Numbers expressible as the sum of no more than 5 squares of composite numbers, allowing repetitions.
1
16, 32, 36, 48, 52, 64, 68, 72, 80, 81, 84, 88, 96, 97, 100, 104, 108, 112, 113, 116, 117, 120, 124, 128, 129, 132, 133, 136, 140, 144, 145, 148, 149, 152, 153, 160, 161, 162, 164, 165, 168, 169, 172, 176, 177, 178, 180, 181, 184, 185, 188, 189, 192, 193
OFFSET
1,1
COMMENTS
1167 is the largest of the 256 positive integers not in the sequence.
REFERENCES
R. K. Guy, Unsolved Problems In Number Theory, section C20.
LINKS
R. G. E. Pinch, L. E. Mattics and Emil Grosswald, Solutions to E3262, Amer. Math. Monthly, 97 (No. 3, 1990), 240-242.
EXAMPLE
52=4^2+6^2, so 52 is in the sequence.
CROSSREFS
Cf. A002808 (composite numbers).
Sequence in context: A296761 A297288 A335246 * A359831 A048111 A122614
KEYWORD
nonn
AUTHOR
Jud McCranie, Jun 19 2000; corrected Jul 04 2000
STATUS
approved