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 A278782 Numbers m such that A000041(m) is of the form 2^5 * k for odd k. 7
 70, 179, 262, 278, 419, 561, 682, 698, 767, 879, 1147, 1238, 1273, 1317, 1362, 1364, 1378, 1450, 1478, 1499, 1509, 1548, 1590, 1638, 1668, 1711, 1752, 1781, 1838, 1949, 2170, 2187, 2300, 2317, 2334, 2382, 2408, 2447, 2463, 2499, 2551, 2669, 2695, 2788, 2926 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Numbers m such that A278478(m) = 5. Also numbers m such that A000041(m) has five times as many even divisors as odd divisors. LINKS Colin Barker, Table of n, a(n) for n = 1..300 FORMULA A000041(a(n)) = A278199(n). MATHEMATICA Select[Range[500], IntegerExponent[PartitionsP[#], 2] == 5 &] (* Amiram Eldar, May 25 2024 *) PROG (PARI) isok(n) = valuation(numbpart(n), 2)==5; select(n->isok(n), vector(3000, n, n)) CROSSREFS Cf. A000041, A278199, A278779, A278780, A278781, A278783, A278784. Positions of 5's in A278478. Sequence in context: A255793 A044402 A044783 * A154361 A165762 A165764 Adjacent sequences: A278779 A278780 A278781 * A278783 A278784 A278785 KEYWORD nonn AUTHOR Colin Barker, Nov 28 2016 STATUS approved

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Last modified September 19 04:12 EDT 2024. Contains 376004 sequences. (Running on oeis4.)