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Search: id:A122794
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| A122794 |
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Connell (3,2)-sum sequence (partial sums of the (3,2)-Connell sequence). |
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+0
8
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| 1, 3, 8, 16, 25, 37, 52, 70, 91, 113, 138, 166, 197, 231, 268, 308, 349, 393, 440, 490, 543, 599, 658, 720, 785, 851, 920, 992, 1067, 1145, 1226, 1310, 1397, 1487, 1580, 1676, 1773, 1873, 1976, 2082, 2191, 2303, 2418, 2536, 2657, 2781, 2908, 3038, 3171, 3305, 3442, 3582, 3725, 3871, 4020, 4172, 4327, 4485, 4646, 4810, 4977, 5147, 5320, 5496, 5673, 5853, 6036, 6222, 6411, 6603
(list; graph; listen)
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OFFSET
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1,2
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REFERENCES
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Iannucci, D. and Mills-Taylor, D. On Generalizing the Connell Sequence. Journal of Integer Sequences v.2(1999) Article 99.1.7.
Bullington, G. D., The Connell Sum Sequence, J. Integer Seq. 10 (2007), Article 07.2.6. (includes direct formula for a(n))
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FORMULA
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a(n)=(nth triangular number)-n+(nth partial sum of A122800).
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CROSSREFS
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Cf. A045928, A001614, A045929, A045930.
Cf. A122793, A122795, A122796, A122797, A122798, A122799, A122800.
Sequence in context: A030417 A123979 A013583 this_sequence A115006 A122796 A104249
Adjacent sequences: A122791 A122792 A122793 this_sequence A122795 A122796 A122797
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KEYWORD
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nonn,easy
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AUTHOR
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Grady Bullington (bullingt(AT)uwosh.edu), Sep 14 2006
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