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A086492 Group the natural numbers such that the n-th group sum is divisible by prime(n): (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 in the n-th group}/prime(n). A086491(n)/prime(n). +0
3
3, 3, 6, 3, 15, 18, 14, 2, 30, 18, 75, 111, 98, 116, 12, 180, 12, 52, 140, 306, 115, 185, 15, 285, 115, 85, 15, 185, 506, 390, 618, 494, 13, 156, 689, 497, 91, 497, 1140, 888, 1394, 459, 1161, 950, 1730, 693, 1953, 693, 189, 252, 630, 693, 2387, 33, 1419, 33, 1419 (list; graph; listen)
OFFSET

1,1

EXAMPLE

a(4) =3 = A086491(4)/prime(4) = 21/7.

CROSSREFS

Cf. A086491, A086493.

Sequence in context: A112163 A120909 A086222 this_sequence A143305 A051472 A048149

Adjacent sequences: A086489 A086490 A086491 this_sequence A086493 A086494 A086495

KEYWORD

nonn

AUTHOR

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

EXTENSIONS

More terms from Ray Chandler (rayjchandler(AT)sbcglobal.net), Sep 16 2003

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Last modified November 21 14:49 EST 2008. Contains 150807 sequences.


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