A071853 Numbers n such that for any x, C(2x,x) never has n distinct prime factors.

11, 38, 51, 70, 84, 92, 107, 147, 155, 167, 279, 310, 326, 354, 377, 403, 469, 475, 489, 534, 588, 607, 619, 669, 685, 687, 710, 783, 805, 820, 848, 898, 947, 1010, 1101, 1207, 1332, 1467, 1481, 1520, 1556, 1578, 1738, 1744, 1796, 1802

Offset

1,1

Links

Table of n, a(n) for n=1..46.

Formula

n such that Card ( x : A067434(x) = n ) = 0

Crossrefs

Sequence in context: A100842 A057664 A279770 * A072313 A063146 A139276

Adjacent sequences: A071850 A071851 A071852 * A071854 A071855 A071856

Keyword

nonn

Author

Benoit Cloitre, Jun 09 2002

Extensions

More terms from Naohiro Nomoto, Jun 16 2002

Status

approved