A102458 Numbers n with A102457(n) != lpf(n-1) (lpf = least prime factor).

2, 152, 158, 338, 368, 380, 524, 542, 548, 608, 614, 662, 674, 692, 998, 1052, 1094, 1110, 1154, 1182, 1202, 1238, 1292, 1322, 1328, 1472, 1532, 1544, 1598, 1622, 1628, 1664, 1862, 1934, 1952, 2018, 2030, 2084, 2132, 2240, 2340, 2342, 2352, 2468, 2474

Offset

1,1

Links

Table of n, a(n) for n=1..45.

Crossrefs

Cf. A102457, A102459.

Sequence in context: A261967 A024245 A113576 * A206309 A265880 A064436

Adjacent sequences: A102455 A102456 A102457 * A102459 A102460 A102461

Keyword

nonn

Author

David W. Wilson, Jan 09 2005

Status

approved