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A265127 a(n) = prime(n) * 2^n. 2
4, 12, 40, 112, 352, 832, 2176, 4864, 11776, 29696, 63488, 151552, 335872, 704512, 1540096, 3473408, 7733248, 15990784, 35127296, 74448896, 153092096, 331350016, 696254464, 1493172224, 3254779904, 6777995264, 13824425984, 28722593792, 58518929408, 121332826112 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
FORMULA
a(n) = A000079(n) * A000040(n).
EXAMPLE
a(1) = 4 because prime(1) * 2^1 = 2 * 2 = 4.
MATHEMATICA
Array[Prime@# 2^# &, {30}] (* Michael De Vlieger, Dec 02 2015 *)
PROG
(PARI) a(n) = prime(n) * 2^n;
(Magma) [NthPrime(n)*2^n: n in [1..30]]; // Vincenzo Librandi, Dec 03 2015
CROSSREFS
Equals twice A110295. - David Radcliffe, Dec 03 2015
Sequence in context: A248325 A344122 A328533 * A056274 A335806 A058353
KEYWORD
nonn,easy
AUTHOR
Altug Alkan, Dec 02 2015
STATUS
approved

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Last modified March 28 09:04 EDT 2024. Contains 371240 sequences. (Running on oeis4.)