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 A081513 a(2)=0; for n != 2, let m = A081512(n), then a(n) = value of d_n in the lexicographically earliest set of n distinct divisors d_1, ..., d_n of m with d_1 + ... + d_n = m. 2
 1, 0, 3, 6, 12, 8, 24, 20, 28, 40, 40, 30, 60, 45, 60, 120, 90, 72, 72, 168, 240, 180, 144, 168, 168, 216, 420, 315, 210, 420, 420, 336, 432, 1260, 840, 840, 504, 504, 315, 480, 540, 2520, 2520, 1680, 1680, 1260, 1260, 1008, 720, 2520, 2520, 1890, 1512, 945, 3360 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 LINKS Table of n, a(n) for n=1..55. EXAMPLE The lexicographically earliest solutions are: ..n....m: d_1 d_2 ... d_n ------------------------- ..1....1: 1 ..2....0: - - ..3....6: 1, 2, 3 ..4...12: 1, 2, 3, 6 ..5...24: 1, 2, 3, 6, 12 ..6...24: 1, 2, 3, 4, 6, 8 ..7...48: 1, 2, 3, 4, 6, 8, 24 ..8...60: 1, 2, 3, 4, 5, 10, 15, 20 ..9...84: 1, 2, 3, 4, 6, 7, 12, 21, 28 .10..120: 1, 2, 3, 4, 5, 6, 15, 20, 24, 40 ... CROSSREFS Cf. A081512, A081514. See also A081515, A081516, A081517, A081521. Sequence in context: A302784 A329889 A296347 * A338833 A342786 A293474 Adjacent sequences: A081510 A081511 A081512 * A081514 A081515 A081516 KEYWORD nonn AUTHOR Amarnath Murthy, Mar 27 2003 EXTENSIONS Corrected by Caleb M. Shor (cshor(AT)bates.edu), Sep 26 2007 Terms a(8) onwards from Jinyuan Wang, May 23 2020 Definition clarified by N. J. A. Sloane, May 23 2020, following suggestions from Jinyuan Wang. STATUS approved

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Last modified June 17 18:36 EDT 2024. Contains 373463 sequences. (Running on oeis4.)