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A065606 The (7^n)-th composite number. 0
4, 14, 69, 388, 2773, 18930, 129761, 894388, 6189788, 42955634, 298658894, 2079246204, 14475705373, 101002269417, 704938883100, 4921666264176, 34371897668159 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..16.

MATHEMATICA

Composite[n_Integer] := Block[ {k = n + PrimePi[n] + 1 }, While[ k != n + PrimePi[k] + 1, k = n + PrimePi[k] + 1]; Return[ k ]]; Table[ Composite[7^n], {n, 0, 16} ]

CROSSREFS

Sequence in context: A007025 A221538 A014512 * A005501 A049372 A050549

Adjacent sequences:  A065603 A065604 A065605 * A065607 A065608 A065609

KEYWORD

nonn

AUTHOR

Robert G. Wilson v, Nov 27 2001

STATUS

approved

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Last modified September 20 11:51 EDT 2014. Contains 246995 sequences.