OFFSET
1,1
REFERENCES
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
LINKS
T. D. Noe, Table of n, a(n) for n=1..1000
Robert G. Wilson v, Letter to N. J. A. Sloane, Aug. 1993
CROSSREFS
KEYWORD
nonn
STATUS
approved