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A136740 (0, 1, 2, 3, 2^2, 5, 2*3, 7, 2^3, 3^2, 2*5, 11, 2^2*3,..) becomes (2, 3, 5, 7, 11^13, 17, 19*23, 29, 31^37, 41^43, 47*53, 59, 61^67*71,..). 6
2, 3, 5, 7, 34522712143931, 17, 437, 29 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..8.

EXAMPLE

a(5)=11^13=34522712142931.

a(7)=19*23=437,

etc.

CROSSREFS

Cf. A141269, A141270,  A143652, A143653, A143666.

Sequence in context: A288715 A208361 A145380 * A105994 A120496 A105150

Adjacent sequences:  A136737 A136738 A136739 * A136741 A136742 A136743

KEYWORD

nonn,less

AUTHOR

Juri-Stepan Gerasimov, Nov 08 2008

EXTENSIONS

Corrected typo in a(5), inserted a(6). R. J. Mathar, Feb 21 2009

STATUS

approved

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Last modified December 1 09:39 EST 2021. Contains 349426 sequences. (Running on oeis4.)