A086495 Group the natural numbers such that the sum of the terms of every group has a distinct prime signature not occurring earlier: (1), (2), (3, 4, 5), (6), (7, 8, 9), (10, 11, 12, 13, 14), (15, 16, 17), (18, 19, 20, 21)... Sequence contains the first term of every group.

1, 2, 3, 6, 7, 10, 15, 18, 22, 27, 28, 36, 37, 45, 52, 61, 68, 77, 86, 104, 113, 128, 129, 132, 144, 146, 167, 194, 227, 242, 266, 275, 302, 323, 350, 371, 380, 389, 412, 444, 453, 472, 489, 504, 521, 569, 584, 617, 664, 697, 712, 747, 790, 811, 838, 883, 910

Offset

0,2

Links

Table of n, a(n) for n=0..56.

Crossrefs

Cf. A086494.

Sequence in context: A093677 A343604 A288672 * A051733 A058632 A086583

Adjacent sequences: A086492 A086493 A086494 * A086496 A086497 A086498

Keyword

nonn

Author

Amarnath Murthy, Jul 28 2003

Extensions

More terms from Ray Chandler, Sep 16 2003

Status

approved