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 A248843 Table read by rows in which row n lists divisors of (p^p-1)/(p-1) where p = prime(n). 0
 1, 3, 1, 13, 1, 11, 71, 781, 1, 29, 4733, 137257, 1, 15797, 1806113, 28531167061, 1, 53, 264031, 1803647, 13993643, 95593291, 476218721057, 25239592216021, 1, 10949, 1749233, 2699538733, 19152352117, 29557249587617, 4722122236541789 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Table of n, a(n) for n=1..31. Samuel S. Wagstaff, Aurifeuillian Factorizations and the Period of the Bell Numbers, Math. Comp. 65 (1996), 383-391. Eric Weisstein's MathWorld, Bell Number Wikipedia, Bell Number EXAMPLE Table begins: [1, 3], [1, 13], [1, 11, 71, 781], [1, 29, 4733, 137257], [1, 15797, 1806113, 28531167061}, [1, 53, 264031, 1803647, 13993643, 95593291, 476218721057, 25239592216021], ... MATHEMATICA Table[p = Prime[n]; Divisors[(p^p - 1)/(p - 1)], {n, 1, 10}] // Flatten CROSSREFS Cf. A000110, A001039, A054767, A125135, A214810, A214811, A214812. Sequence in context: A321697 A263008 A016479 * A170910 A134768 A295827 Adjacent sequences: A248840 A248841 A248842 * A248844 A248845 A248846 KEYWORD nonn,tabf AUTHOR Jean-François Alcover, Dec 03 2014 STATUS approved

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Last modified April 23 22:36 EDT 2024. Contains 371917 sequences. (Running on oeis4.)