A316886 - OEIS

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A316886

Where records occur in A299773.

1, 2, 3, 4, 6, 8, 10, 12, 16, 18, 20, 24, 30, 36, 42, 48, 60, 72, 84, 90, 96, 108, 120, 144, 168, 180, 210, 216, 240, 288, 300, 336, 360, 420, 480, 504, 540, 600, 630, 660, 672, 720, 840, 960, 1008, 1080, 1200, 1260, 1440, 1560, 1620, 1680, 1800, 1920, 1980

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OFFSET

1,2

COMMENTS

First differs from the highly abundant numbers (A002093) at a(41) = 672, while A002093(41) = 720.

LINKS

Amiram Eldar, Table of n, a(n) for n = 1..64

EXAMPLE

After a(40) = 660 we have that in the sequence A299773 the terms A299773(661)..A299773(671) are less than A299773(660) = 7187172406818511650939943511021032181119077585. The next term greater than A299773(660) is A299773(672) = 7187180892191062904110726467218877665371246875, so a(41) = 672. Note that both 660 and 672 have the same number of divisors (tau(660) = tau(672) = 24) and the same sum of divisors (sigma(660) = sigma(672) = 2016).

CROSSREFS

Cf. A000005, A000041, A000203, A002093, A299773, A316916.

Sequence in context: A330899 A325796 A279029 * A309943 A002093 A179971

Adjacent sequences: A316883 A316884 A316885 * A316887 A316888 A316889

KEYWORD

nonn

AUTHOR

Omar E. Pol, Jul 15 2018

EXTENSIONS

More terms from Amiram Eldar, Aug 22 2019

STATUS

approved