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 A160233 Numbers k such that k is a member of A002183 but 2*k is not. 2
 1280, 1600, 4800, 28672, 131072, 688128, 6881280, 7864320, 39321600, 43253760, 94371840, 201326592, 528482304, 9663676416, 115964116992, 241591910400, 265751101440, 347892350976, 811748818944, 3522410053632, 4174708211712, 21646635171840, 23811298689024, 27058293964800 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Amiram Eldar, Table of n, a(n) for n = 1..1000 EXAMPLE 1280 qualifies because 1280 is a member of A002183 but 1280*2 = 2560 is not. MATHEMATICA (* capture the terms in the b002183.txt file: "Number of divisors of n-th highly composite number" and assign it to the variable 's' *) Select[ Take[s, 964], !MemberQ[s, 2 # ] &] (* Robert G. Wilson v, May 09 2009 *) CROSSREFS Cf. A002182, A002183. Sequence in context: A251889 A251886 A234137 * A251887 A251894 A251791 Adjacent sequences:  A160230 A160231 A160232 * A160234 A160235 A160236 KEYWORD nonn AUTHOR J. Lowell, May 04 2009 EXTENSIONS More terms from Robert G. Wilson v, May 09 2009 More terms from Amiram Eldar, Nov 13 2019 STATUS approved

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Last modified December 5 12:24 EST 2021. Contains 349557 sequences. (Running on oeis4.)