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 A099317 Minimal numbers having in canonical prime factorization at least one factor p^e such that e+1 is not prime, p prime and e>0. 2
 24, 120, 360, 840, 2520, 7560, 10080, 15120, 27720, 50400, 60480, 83160, 110880, 166320, 332640, 352800, 554400, 665280, 967680, 1081080, 1441440, 2162160, 2822400, 3870720, 3880800, 4324320, 7207200, 8648640, 10644480, 10810800, 17297280, 21621600, 31046400 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS A minimal number is the smallest number with a given number of divisors, see A007416; A000005(a(n)) = A072066(m) for some m. LINKS David A. Corneth and Amiram Eldar, Table of n, a(n) for n = 1..9000 (terms <= 10^45) EXAMPLE A007416(38) = A005179(64) = 7560 = 2^3*3^3*5*7; A007416(39) = A005179(72) = 10080 = 2^5*3^2*5*7. CROSSREFS Cf. A000005, A005179, A007416, A072066. Sequence in context: A372497 A052762 A217056 * A293018 A292969 A292979 Adjacent sequences: A099314 A099315 A099316 * A099318 A099319 A099320 KEYWORD nonn AUTHOR Reinhard Zumkeller, Oct 12 2004 EXTENSIONS More terms from Amiram Eldar, Jul 09 2019 STATUS approved

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Last modified June 24 00:02 EDT 2024. Contains 373661 sequences. (Running on oeis4.)