1,1
Problem E3408, Amer. Math. Monthly, 99 (1992), 175-176.
Sequence in context: A056640 A101105 A037140 this_sequence A000339 A081435 A109363
Adjacent sequences: A007234 A007235 A007236 this_sequence A007238 A007239 A007240
nonn
Simon Plouffe (plouffe(AT)math.uqam.ca)
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