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A209839 Integers n such that for all i > n the largest prime factor of product(i+k, {k,0,15}) exceeds the largest prime factor of product(n+k, {k,0,15}). 2
1, 3, 7, 13, 15, 21, 25, 27, 31, 37, 43, 45, 51, 55, 57, 63, 67, 73, 81, 85, 87, 91, 93, 97, 111, 115, 121, 123, 133, 135, 141, 147, 151, 157, 163, 165, 175, 177, 181, 183, 195, 207, 211, 213, 217, 223, 225, 235, 241, 247, 253, 1330, 1383, 4179, 4180, 4181, 5243, 12985, 48506, 87161, 211750 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Heuristics show that these terms are valid, but a strict proof is yet to be done.

LINKS

Andrey V. Kulsha, Table of n, a(n) for n = 1..80

CROSSREFS

Cf. A209838.

Sequence in context: A056530 A310253 A092734 * A192854 A002236 A255682

Adjacent sequences:  A209836 A209837 A209838 * A209840 A209841 A209842

KEYWORD

nonn

AUTHOR

Andrey V. Kulsha, Mar 14 2012

STATUS

approved

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Last modified December 12 15:11 EST 2019. Contains 329960 sequences. (Running on oeis4.)