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Search: id:A002132
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| A002132 |
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Generalized sum of divisors function.
(Formerly M1096 N0418)
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+0
2
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| 1, 2, 4, 8, 14, 18, 28, 40, 52, 70, 88, 104, 140, 168, 196, 240, 278, 320, 380, 440, 504, 562, 644, 720, 808, 910, 1000, 1120, 1240, 1360, 1488, 1600, 1789, 1938, 2100, 2296, 2452, 2660, 2880, 3080, 3292, 3542, 3784, 4048, 4400, 4572, 4868, 5280, 5502, 5850
(list; graph; listen)
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OFFSET
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4,2
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REFERENCES
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N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
P. A. MacMahon, Divisors of numbers and their continuations in the theory of partitions, Proc. London Math. Soc., (2) 19 (1919), 75-113; Coll. Papers II, pp. 303-341.
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CROSSREFS
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A diagonal of A060047.
Sequence in context: A069049 A124853 A084621 this_sequence A140164 A160730 A132425
Adjacent sequences: A002129 A002130 A002131 this_sequence A002133 A002134 A002135
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KEYWORD
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nonn,easy
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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EXTENSIONS
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More terms from Naohiro Nomoto (n_nomoto(AT)yabumi.com) and Vladeta Jovovic (vladeta(AT)eunet.rs), Jan 25 2002
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