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A085949 Smallest multiple of prime(n) of the form r*prime(n-1) + s*prime(n+1). r and s are positive integers. +0
2
9, 10, 21, 33, 39, 51, 57, 115, 116, 124, 185, 123, 129, 235, 106, 236, 244, 335, 213, 292, 395, 415, 623, 291, 303, 309, 321, 327, 1017, 1143, 655, 548, 834, 894, 604, 314, 815, 835, 346, 716, 1086, 1146, 579, 591, 1393, 422, 892, 681, 687, 1165, 956, 1446 (list; graph; listen)
OFFSET

2,1

EXAMPLE

a(1) = 1*2 + 2*5 = 12 = 4*3 = 4* prime(2). r = 1 and s = 2 both r and s are positive integers.

a(9) = 1*23 + 3*31 =116 =4*29 = 4*prime(10).

CROSSREFS

Cf. A085950.

Sequence in context: A041162 A041691 A022314 this_sequence A102238 A104646 A109463

Adjacent sequences: A085946 A085947 A085948 this_sequence A085950 A085951 A085952

KEYWORD

nonn

AUTHOR

Amarnath Murthy and Jason Earls (amarnath_murthy(AT)yahoo.com), Jul 15 2003

EXTENSIONS

Corrected and extended by David Wasserman (wasserma(AT)spawar.navy.mil), Feb 15 2005

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.


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