A090979 From the sequence of natural numbers, go on deleting n smallest multiples of n (>n) not deleted earlier; a(n) = the largest number deleted.

2, 6, 15, 24, 40, 60, 70, 112, 135, 180, 165, 276, 247, 378, 420, 480, 408, 648, 513, 800, 819, 946, 782, 1248, 1125, 1378, 1404, 1596, 1189, 1950, 1364, 2176, 2079, 2414, 2415, 2880, 1998, 3002, 3081, 3640, 2460, 3948, 2709, 4180, 4320, 4416, 3196, 5376

Offset: 1

Author

Amarnath Murthy, Jan 23 2004

Keywords

• nonn
• easy

Crossrefs

Cf. A090980.

Extensions

More terms from Sam Handler (sam_5_5_5_0(AT)yahoo.com), Jul 23 2004