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 A347408 A347338(n) is the a(n)-th number having its number of divisors. 0
 1, 2, 12, 4, 1, 1, 14, 3, 48, 2, 9, 5, 26, 10, 63, 2, 16, 6, 27, 96, 99, 34, 19, 3, 25, 19, 31, 36, 3, 59, 4, 1, 133, 217, 69, 2, 9, 12, 165, 24, 429, 2, 6, 87, 129, 51, 30, 1, 29, 3, 514, 69, 20, 5, 13, 18, 76, 23, 10, 1, 123, 186, 51, 1, 1, 12, 9, 11, 10, 27, 285 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Table of n, a(n) for n=1..71. EXAMPLE a(3) = 12 as A347338(3) = 35. 35 has 4 divisors and 35 is the 12th number having 4 divisors (after the 11 numbers 6, 8, 10, 14, 15, 21, 22, 26, 27, 33 and 34). PROG (PARI) a(n) = my(k = A347338(n), q = numdiv(k), res = 1); for(i = 1, k-1, if(numdiv(i) == q, res++)); res CROSSREFS Cf. A347338. Sequence in context: A363932 A317206 A164869 * A248030 A082292 A248588 Adjacent sequences: A347405 A347406 A347407 * A347409 A347410 A347411 KEYWORD nonn AUTHOR David A. Corneth, Aug 30 2021 STATUS approved

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Last modified September 18 03:51 EDT 2024. Contains 375995 sequences. (Running on oeis4.)