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A116570 a(2*n) = prime(n+1) * prime(n+2), a(2*n-1) = prime(n+1). 1
6, 3, 15, 5, 35, 7, 77, 11, 143, 13, 221, 17, 323, 19, 437, 23, 667, 29, 899, 31, 1147, 37, 1517, 41, 1763, 43, 2021, 47, 2491, 53, 3127, 59, 3599, 61, 4087, 67, 4757, 71, 5183, 73, 5767, 79, 6557, 83, 7387, 89, 8633, 97, 9797, 101, 10403, 103, 11021, 107, 11663 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

G. C. Greubel, Table of n, a(n) for n = 0..5000

FORMULA

a(2*n) = prime(n+1) * prime(n+2). a(2*n-1) = prime(n+1). - Michael Somos, Jul 20 2016

CROSSREFS

Cf. A114557.

Sequence in context: A049784 A341746 A097917 * A335567 A225503 A302350

Adjacent sequences:  A116567 A116568 A116569 * A116571 A116572 A116573

KEYWORD

nonn,less

AUTHOR

Roger L. Bagula, Mar 18 2006

EXTENSIONS

Edited, new name using Michael Somos' formula, Joerg Arndt, Sep 21 2017

STATUS

approved

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Last modified September 23 19:03 EDT 2021. Contains 347617 sequences. (Running on oeis4.)