|
| |
|
|
A004129
|
|
Number of solutions to postage stamp problem.
(Formerly M2525)
|
|
1
| |
|
|
1, 3, 6, 9, 13, 17, 22, 27, 33, 40, 47, 56, 65
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 2,2
|
|
|
REFERENCES
| R. L. Graham and N. J. A. Sloane, On Additive Bases and Harmonious Graphs, SIAM J. Algebraic and Discrete Methods, 1 (1980), 382-404.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
|
|
|
LINKS
| R. L. Graham and N. J. A. Sloane, On Additive Bases and Harmonious Graphs
S. Plouffe, Approximations de S\'{e}ries G\'{e}n\'{e}ratrices et Quelques Conjectures, Dissertation, Universit\'{e} du Qu\'{e}bec \`{a} Montr\'{e}al, 1992.
S. Plouffe, 1031 Generating Functions and Conjectures, Universit\'{e} du Qu\'{e}bec \`{a} Montr\'{e}al, 1992.
|
|
|
MAPLE
| A004129:=(z**4+z**3+2*z**2+2*z+1)*(z**2+z+1)/(z-1)/(z**5+z**4+z**3-z-1); [Conjectured by S. Plouffe in his 1992 dissertation.]
|
|
|
CROSSREFS
| Sequence in context: A025205 A024190 A004116 * A171662 A004137 A080060
Adjacent sequences: A004126 A004127 A004128 * A004130 A004131 A004132
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
|
| |
|
|
