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A060781 LCM[sigma(n+1), sigma(n)] = LCM[A000203(n+1), A000203(n)]. 5
3, 12, 28, 42, 12, 24, 120, 195, 234, 36, 84, 28, 168, 24, 744, 558, 234, 780, 420, 672, 288, 72, 120, 1860, 1302, 840, 280, 840, 360, 288, 2016, 1008, 432, 432, 4368, 3458, 1140, 840, 2520, 630, 672, 1056, 924, 1092, 936, 144, 1488, 7068, 1767, 2232, 3528 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

LINKS

Harry J. Smith, Table of n, a(n) for n=1,...,1000

PROG

(PARI) { t=1; for (n=1, 1000, s=sigma(n+1); write("b060781.txt", n, " ", lcm(s, t)); t=s; ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jul 11 2009]

CROSSREFS

A000203.

Sequence in context: A009222 A083543 A083538 * A083539 A066643 A140065

Adjacent sequences:  A060778 A060779 A060780 * A060782 A060783 A060784

KEYWORD

nonn

AUTHOR

Labos E. (labos(AT)ana.sote.hu), Apr 26 2001

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Last modified February 17 19:13 EST 2012. Contains 206085 sequences.