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A074038 If n is the k-th single (i.e. non-twin) prime then k else 0. 2
0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 0, 0, 0, 8, 0, 0, 0, 0, 0, 9, 0, 0, 0, 0, 0, 0, 0, 10, 0, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,23

COMMENTS

A007510(a(n)) = n.

LINKS

Table of n, a(n) for n=1..99.

CROSSREFS

Cf. A074039, A049084.

Sequence in context: A089811 A091888 A083928 * A204843 A204853 A185778

Adjacent sequences:  A074035 A074036 A074037 * A074039 A074040 A074041

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Aug 13 2002

STATUS

approved

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Last modified October 21 23:13 EDT 2014. Contains 248381 sequences.