A209837 -id:A209837 - cp's OEIS frontend

A200570 Integers n such that for all i > n the largest prime factor of product(i+k, {k,0,12}) exceeds the largest prime factor of product(n+k, {k,0,12}).

4, 6, 10, 16, 18, 24, 28, 30, 34, 40, 46, 48, 114, 118, 124, 126, 136, 138, 294, 318, 1332, 1333, 48505, 48509, 87164, 135990, 416319, 436744, 780358, 8763442, 25039772, 35176558, 44444364, 61575288, 100918165, 846178875, 1214569400, 2644138052, 9381631594

Offset: 1

Andrey V. Kulsha, Nov 19 2011

nonn

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

Andrey V. Kulsha, Table of n, a(n) for n = 1..43

Cf. A200569, A209837.

A209838 Integers n such that for all i > n the largest prime factor of product(i+k, {k,0,14}) exceeds the largest prime factor of product(n+k, {k,0,14}).

Original entry on oeis.org

2, 4, 8, 14, 16, 22, 26, 28, 32, 38, 44, 46, 52, 56, 58, 64, 68, 74, 82, 86, 88, 92, 94, 98, 112, 116, 122, 124, 134, 136, 142, 148, 152, 158, 164, 166, 176, 178, 182, 184, 196, 208, 1330, 1331, 48503, 48507, 87162, 211751, 279366, 1845847, 3177028, 4309596, 4363994, 9034134, 61575286

Offset: 1

Andrey V. Kulsha, Mar 14 2012

nonn

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

Andrey V. Kulsha, Table of n, a(n) for n = 1..70

Cf. A209837, A209839.

cp's OEIS Frontend

A200570 Integers n such that for all i > n the largest prime factor of product(i+k, {k,0,12}) exceeds the largest prime factor of product(n+k, {k,0,12}).

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