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R. K. Guy and R. Nowakowski, ApSimon's mints problem, Amer. Math. Monthly, 101 (1994), 358-359.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
Table of n, a(n) for n=1..7.
Sequence in context: A036661 A145671 A108693 * A026096 A098864 A002546
Adjacent sequences: A007670 A007671 A007672 * A007674 A007675 A007676
N. J. A. Sloane, Robert G. Wilson v