1,1
C. Kimberling, Problem 10520 in Amer. Math. Mon. 103 (1996) p. 347.
Sequence in context: A135105 A072423 A156244 this_sequence A005224 A054870 A107988
Adjacent sequences: A020958 A020959 A020960 this_sequence A020962 A020963 A020964
nonn
Clark Kimberling (ck6(AT)evansville.edu)
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