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A216929 Number of Lucas-Carmichael numbers less than 10^n. 2
0, 0, 2, 8, 26, 60, 135, 323, 791, 1840, 4216, 9967 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..12.

CROSSREFS

Cf. A006972 (Lucas-Carmichael numbers).

Sequence in context: A206803 A212527 A227015 * A100504 A327600 A099416

Adjacent sequences:  A216926 A216927 A216928 * A216930 A216931 A216932

KEYWORD

nonn,more

AUTHOR

Tim Johannes Ohrtmann, Sep 20 2012

EXTENSIONS

a(9)-a(11) from Donovan Johnson, Sep 22 2012

a(12) from Donovan Johnson, Sep 26 2012

STATUS

approved

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Last modified April 7 04:20 EDT 2020. Contains 333292 sequences. (Running on oeis4.)