A193944 - OEIS

A193944

Integers k such that for all j > k the largest prime factor of j*(j+1)*(j+2) exceeds the largest prime factor of k*(k+1)*(k+2).

2, 8, 48, 98, 350, 440, 2430, 13310, 13454, 17575, 212380, 1205644, 2018978, 3939648, 15473808, 407498958, 138982582998, 768026327418, 1049851495966, 2682238231673, 5556134065128, 14334401249714, 201602864021438

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OFFSET

1,1

COMMENTS

Heuristics show that these terms are valid, but a strict proof is yet to be done. Terms 24-26 were found with a program written by Robert Gerbicz. - Andrey V. Kulsha, Aug 29 2011

LINKS

Andrey V. Kulsha, Table of n, a(n) for n = 1..26

CROSSREFS

Cf. A003032, A193943, A193945.

Sequence in context: A253665 A078558 A003032 * A058928 A376029 A228288

Adjacent sequences: A193941 A193942 A193943 * A193945 A193946 A193947

KEYWORD

nonn

AUTHOR

Andrey V. Kulsha, Aug 10 2011

STATUS

approved