|
| |
|
|
A002134
|
|
Generalized divisor function. Partitions of n using only 3 types of piles.
(Formerly M1367 N0530)
|
|
4
| |
|
|
1, 2, 5, 10, 15, 25, 37, 52, 67, 97, 117, 154, 184, 235, 277, 338, 385, 469, 531, 630, 698, 810, 910, 1038, 1144, 1295, 1425, 1577, 1741, 1938, 2089, 2301, 2505, 2700, 2970, 3189, 3444, 3703, 4004, 4242, 4617, 4882, 5244
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 6,2
|
|
|
REFERENCES
| 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.
N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
|
|
|
CROSSREFS
| A diagonal of A060177.
Sequence in context: A163059 A099738 A117582 * A062472 A086849 A131938
Adjacent sequences: A002131 A002132 A002133 * A002135 A002136 A002137
|
|
|
KEYWORD
| nonn,easy
|
|
|
AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
|
|
|
EXTENSIONS
| Better description and more terms from Naohiro Nomoto (n_nomoto(AT)yabumi.com), Jan 24 2002
More terms from Vladeta Jovovic (vladeta(AT)eunet.rs), Nov 02 2003
|
| |
|
|
