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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
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
Sequence in context: A321697 A263008 A016479 * A170910 A134768 A295827
KEYWORD
nonn,tabf
AUTHOR
STATUS
approved

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