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 A249552 Numbers n such that there are precisely 9 groups of order n. 16
 308, 532, 644, 836, 868, 1316, 1364, 1652, 1748, 1815, 1876, 1892, 2068, 2212, 2324, 2356, 2596, 2852, 2884, 2996, 3124, 3268, 3476, 3572, 3652, 3668, 3892, 3956, 4228, 4263, 4484, 4532, 4564, 4676, 4708, 5012, 5092, 5332, 5348, 5396, 5428, 5572, 5588, 5764, 5828, 6004, 6116, 6164, 6244, 6308, 6356, 6532 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Muniru A Asiru, Table of n, a(n) for n = 1..4509 MAPLE select(t -> GroupTheory:-NumAbelianGroups(t) <= 9 and GroupTheory:-NumGroups(t) = 9, [\$1..10000]); # Robert Israel, Mar 26 2018 PROG (GAP) A249552:=Filtered([1..2015], n->NumberSmallGroups(n)=9); # Muniru A Asiru, Nov 17 2017 CROSSREFS Cf. A000001, A003277, A054395, A055561, A054396, A054397, A135850, A249550, A249551, A249552, A249553, A249554, A249555. Sequence in context: A234030 A118843 A224675 * A237457 A234211 A053172 Adjacent sequences:  A249549 A249550 A249551 * A249553 A249554 A249555 KEYWORD nonn,more AUTHOR N. J. A. Sloane, Nov 01 2014 EXTENSIONS a(13)-a(16) from Muniru A Asiru, Oct 21 2017 More terms from Muniru A Asiru, Oct 23 2017 More terms from Muniru A Asiru, Nov 17 2017 STATUS approved

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Last modified November 17 20:50 EST 2018. Contains 317278 sequences. (Running on oeis4.)