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Search: id:A007087
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| A007087 |
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Next term is uniquely the sum of 3 earlier terms.
(Formerly M1035)
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+0
1
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| 1, 2, 4, 7, 10, 12, 16, 17, 32, 36, 42, 57, 72, 73, 98, 102, 104, 129, 159, 164, 174, 189, 199, 221, 224, 255, 286, 287, 347, 372, 378, 403, 428, 443, 444, 469, 494, 529, 560, 586
(list; graph; listen)
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OFFSET
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1,2
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REFERENCES
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M. C. Wunderlich, The improbable behavior of Ulam's summation sequence, pp. 249-257 of A. O. L. Atkin and B. J. Birch, editors, Computers in Number Theory. Academic Press, NY, 1971.
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CROSSREFS
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Sequence in context: A008062 A089972 A062429 this_sequence A101359 A007303 A102988
Adjacent sequences: A007084 A007085 A007086 this_sequence A007088 A007089 A007090
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KEYWORD
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nonn
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AUTHOR
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njas, Robert G. Wilson v (rgwv(AT)rgwv.com)
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