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A090942 n-th arithmetic mean = prime(n). +0
1
2, 4, 9, 13, 27, 23, 41, 33, 55, 83, 51, 103, 89, 69, 103, 143, 155, 95, 175, 147, 113, 205, 171, 227, 289, 201, 155, 215, 165, 229, 547, 255, 329, 205, 489, 221, 373, 385, 319, 407, 419, 263, 611, 279, 373, 289, 763, 787, 419, 327, 433, 545, 345, 781, 581, 593 (list; graph; listen)
OFFSET

1,1

FORMULA

a(n)= n*prime(n) -(n-1)*prime(n-1).

a(n) = A033287(n-2), n>1. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Sep 08 2008]

CROSSREFS

Sequence in context: A162761 A114885 A049793 this_sequence A085901 A077224 A059447

Adjacent sequences: A090939 A090940 A090941 this_sequence A090943 A090944 A090945

KEYWORD

nonn

AUTHOR

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Dec 29 2003

EXTENSIONS

Corrected and extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Dec 31 2003

page 1

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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