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A086494 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 sum of the terms of groups. 1
1, 2, 12, 6, 24, 60, 48, 78, 120, 27, 252, 36, 324, 336, 504, 448, 648, 729, 1701, 972, 1800, 128, 390, 1650, 289, 3276, 4860, 6930, 3510, 6084, 2430, 7776, 6552, 9072, 7560, 3375, 3456, 9200, 13680, 4032, 8778, 8160, 7440, 8704, 26136, 8640, 19800 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

CROSSREFS

Cf. A086495.

Sequence in context: A015808 A079080 A035877 * A107414 A133437 A014964

Adjacent sequences:  A086491 A086492 A086493 * A086495 A086496 A086497

KEYWORD

nonn

AUTHOR

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Jul 28 2003

EXTENSIONS

Corrected and extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Sep 16 2003

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Last modified February 14 08:58 EST 2012. Contains 205614 sequences.