A006639 Restricted postage stamp problem. (Formerly M2581)

3, 6, 15, 24, 33, 48, 63, 90

Offset

1,1

References

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

S. S. Wagstaff, Jr., Additive h-bases for n, pp. 302-327 of Number Theory Carbondale 1979, Lect. Notes Math. 751 (1982).

Links

Table of n, a(n) for n=1..8.

Crossrefs

Sequence in context: A129602 A044888 A179805 * A242757 A166448 A380517

Adjacent sequences: A006636 A006637 A006638 * A006640 A006641 A006642

Keyword

nonn

Author

N. J. A. Sloane.

Status

approved