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A138636 a(n) = 6 * prime(n). 9
12, 18, 30, 42, 66, 78, 102, 114, 138, 174, 186, 222, 246, 258, 282, 318, 354, 366, 402, 426, 438, 474, 498, 534, 582, 606, 618, 642, 654, 678, 762, 786, 822, 834, 894, 906, 942, 978, 1002, 1038, 1074, 1086, 1146, 1158, 1182, 1194, 1266, 1338, 1362, 1374 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Solutions of the differential equation n' = (5/6)*n+6, where n' is the arithmetic derivative of n. - Paolo P. Lava, Feb 02 2012

Column 5 of A272214. - Omar E. Pol, Apr 29 2016

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

EXAMPLE

2*6=12, 3*6=18, ...

MATHEMATICA

6*Prime[Range[100]]

PROG

(MAGMA) [6*p: p in PrimesUpTo(300)]; // Vincenzo Librandi, Mar 27 2014

(PARI) vector(50, n, 6*prime(n)) \\ G. C. Greubel, Feb 02 2019

(Sage) [6*nth_prime(n) for n in (1..50)] # G. C. Greubel, Feb 02 2019

CROSSREFS

Cf. A000040, A001748, A001749, A001750, A100484.

Sequence in context: A275082 A256753 A167597 * A075281 A171179 A257768

Adjacent sequences:  A138633 A138634 A138635 * A138637 A138638 A138639

KEYWORD

nonn,easy

AUTHOR

Vladimir Joseph Stephan Orlovsky, May 14 2008

STATUS

approved

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Last modified February 25 11:14 EST 2020. Contains 332234 sequences. (Running on oeis4.)