A138636 a(n) = 6 * prime(n).

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

Offset: 1

Author

Vladimir Joseph Stephan Orlovsky, May 14 2008

Keywords

• nonn
• easy

Comments

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

Examples

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

Links

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

Crossrefs

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

Programs

Magma

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

Mathematica

6*Prime[Range[100]]

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