A058021 Largest prime preceding distinct values of lcm(1,...,m): Max{p|p < A003418(A000961(n))}. To get different LCM values, the last arguments(m) of LCM were selected from A000961.

-2, -2, 5, 11, 59, 419, 839, 2503, 27701, 360337, 720703, 12252197, 232792559, 5354228879, 26771144371, 80313433159, 2329089562799, 72201776446757, 144403552893599, 5342931457063157, 219060189739591153, 9419588158802421517, 442720643463713815199

Offset

0,1

Links

Table of n, a(n) for n=0..22.

Example

lcm(1,2,3,4,5,6,7,8)=840 is the 7th term in A000961. Primes preceding it, in descending order, are  839, 829, .... So the corresponding prime in this sequence is 839. The first 2 entries come before lcm(1)=1 and lcm(1,2)=2 as 1-3 = -2 and 2-4 = -2.

Crossrefs

Cf. A000961, A003418, A051451.

Sequence in context: A049680 A153983 A262714 * A152445 A077182 A230090

Adjacent sequences: A058018 A058019 A058020 * A058022 A058023 A058024

Keyword

sign

Author

Labos Elemer, Nov 15 2000

Status

approved