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A080288
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Successively larger gaps between Ulam numbers.
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2
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1, 2, 3, 8, 9, 10, 12, 20, 27, 30, 34, 39, 41, 42, 69, 78, 100, 122, 137, 262, 315, 587, 631
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| The lower term of the gaps is in A080287.
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EXAMPLE
| 87 and 97 are successive Ulam numbers and this is the first gap of 10 or larger, so 10 is in the sequence.
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CROSSREFS
| Cf. A002858, A080287.
Sequence in context: A047476 A037462 A037318 * A169868 A191159 A047360
Adjacent sequences: A080285 A080286 A080287 * A080289 A080290 A080291
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KEYWORD
| nonn
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AUTHOR
| Jud McCranie (JudMcCranie(AT)ugaalum.uga.edu), Feb 12 2003
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EXTENSIONS
| 23rd term found by Donald Knuth [From Jud McCranie (JudMcCranie(AT)ugaalum.uga.edu), Aug 22 2008]
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