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 A075060 a(n) = solution to the postage stamp problem with n denominations and 10 stamps. 19
 10, 40, 146, 427, 1055, 2510, 5047 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Fred Lunnon [W. F. Lunnon] defines "solution" to be the smallest value not obtainable by the best set of stamps. The solutions given are one lower than this, that is, the sequence gives the largest number obtainable without a break using the best set of stamps. REFERENCES R. K. Guy, Unsolved Problems in Number Theory, C12. LINKS Table of n, a(n) for n=1..7. R. Alter and J. A. Barnett, A postage stamp problem, Amer. Math. Monthly, 87 (1980), 206-210. M. F. Challis and J. P. Robinson, Some Extremal Postage Stamp Bases, J. Integer Seq., 13 (2010), Article 10.2.3. [From John P Robinson (john-robinson(AT)uiowa.edu), Feb 18 2010] Erich Friedman, Postage stamp problem W. F. Lunnon, A postage stamp problem, Comput. J. 12 (1969) 377-380. Eric Weisstein's World of Mathematics, Postage stamp problem CROSSREFS Postage stamp sequences: A001208, A001209, A001210, A001211, A001212, A001213, A001214, A001215, A001216, A005342, A005343, A005344, A014616, A053346, A053348, A075060, A084192, A084193. Sequence in context: A227056 A027981 A013977 * A279219 A002066 A061991 Adjacent sequences: A075057 A075058 A075059 * A075061 A075062 A075063 KEYWORD nonn,more AUTHOR N. J. A. Sloane, Jun 20 2003 EXTENSIONS Entry improved by comments from John Seldon (johnseldon(AT)onetel.com), Sep 15 2004 a(7) from Challis and Robinson by John P Robinson (john-robinson(AT)uiowa.edu), Feb 18 2010 STATUS approved

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Last modified July 13 02:50 EDT 2024. Contains 374265 sequences. (Running on oeis4.)