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A020958 Sum of [ 3*tau^(n-k) ] for k from 1 to infinity. 1
5, 9, 16, 28, 48, 81, 134, 221, 361, 589, 957, 1554, 2519, 4082, 6610, 10702, 17322, 28035, 45368, 73415, 118795, 192223, 311031, 503268, 814313, 1317596 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

REFERENCES

C. Kimberling, Problem 10520 in Amer. Math. Mon. 103 (1996) p. 347.

CROSSREFS

Sequence in context: A105600 A072174 A188555 * A020750 A020713 A090990

Adjacent sequences:  A020955 A020956 A020957 * A020959 A020960 A020961

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified February 14 00:47 EST 2012. Contains 205567 sequences.