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A114133 a(n) is the smallest number such that each of the first 2n primes appears exactly once in its prime factorization, either as factor or exponent. 1
8, 6125, 3780549773, 12832743794826606079, 18632315678640808861660235507687953, 3286237594434722554545877627252677146664874837189702511 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
MATHEMATICA
fp[n_]:=Module[{c=TakeDrop[Prime[Range[2n]], n], a}, a=Reverse[c[[1]]]; Times@@ (c[[2]]^a)]; Join[{8}, Array[fp, 10, 2]] (* Harvey P. Dale, Jan 18 2020 *)
CROSSREFS
Sequence in context: A079189 A334517 A278384 * A221233 A173190 A291879
KEYWORD
nonn
AUTHOR
Jon Wild, Feb 14 2006
STATUS
approved

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Last modified February 28 01:44 EST 2024. Contains 370379 sequences. (Running on oeis4.)