A133185 Conjectured list of numbers that are 7-smooth (A002473) but are not in A133184.

14, 21, 24, 30, 42, 60, 63, 70, 75, 84, 90, 100, 105, 108, 112, 120, 126, 135, 147, 150, 168, 175, 189, 210, 224, 225, 240, 250, 252, 280, 294, 300, 315, 336, 350, 360, 375, 378, 405, 420, 448, 450, 490, 504, 525, 560, 567, 588, 600, 630, 640, 672, 675, 686, 700, 735, 756

Offset: 1

Author

J. H. Conway and N. J. A. Sloane, Jan 01 2008

Keywords

• nonn
• base

Links

• N. J. A. Sloane, Table of n, a(n) for n = 1..1000