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Search: id:A052199
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| A052199 |
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Numbers that are expressible as the sum of 2 distinct positive squares in more ways than any smaller number. |
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6
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| 5, 65, 325, 1105, 5525, 27625, 71825, 138125, 160225, 801125, 2082925, 4005625, 5928325, 29641625, 77068225, 148208125, 243061325, 1215306625, 3159797225, 6076533125, 12882250225, 53716552825, 64411251125, 167469252925, 322056255625, 785817263725
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Number of ways: 1,2,3,4,6,8,9,10,12,16,18,20,24,32,36
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REFERENCES
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Donald S. McDonald, Postings to sci.math newsgroup, Feb 21, 1995 and Dec 04, 1995.
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LINKS
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G. Xiao, Two squares
Index entries for sequences related to sums of squares
Author?, World Mathematical Year
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EXAMPLE
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65 = 1^2+8^2 = 4^2+7^2, the smallest expressible in two ways, so 65 is in the sequence.
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CROSSREFS
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Cf. A001983.
See the companion series A060306 for number of ways for the n-th selection.
Sequence in context: A126955 A091105 A071902 this_sequence A093195 A061184 A118004
Adjacent sequences: A052196 A052197 A052198 this_sequence A052200 A052201 A052202
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KEYWORD
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nonn
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AUTHOR
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Jud McCranie (j.mccranie(AT)comcast.net), Jan 28 2000
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EXTENSIONS
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More terms from Randall L. Rathbun, Jan 18 2002
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