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A173137 n-th nonnegative noncomposite number plus n. 0
1, 3, 5, 7, 10, 13, 18, 21, 26, 29, 34, 41, 44, 51, 56, 59, 64, 71, 78, 81, 88, 93, 96, 103, 108, 115, 124, 129, 132, 137, 140, 145, 160, 165, 172, 175, 186, 189, 196, 203, 208, 215, 222, 225, 236, 239, 244, 247, 260, 273, 278, 281, 286, 293, 296, 307, 314, 321 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
FORMULA
a(n) = A158611(n) + A000027(n).
EXAMPLE
a(1) = 0 + 1 = 1, a(2) = 1 + 2 = 3, a(3) = 2 + 3 = 5,
a(4) = 3 + 4 = 7, a(5) = 5 + 5 = 10.
MATHEMATICA
Join[{1}, Table[Prime[n - 1] + n + 1, {n, 2, 60}]] (* Vincenzo Librandi, Dec 08 2015 *)
PROG
(Magma) [1] cat [NthPrime(n-1)+n+1: n in [1..58] ]; // Vincenzo Librandi, Dec 08 2015
CROSSREFS
Sequence in context: A057672 A112509 A296846 * A310020 A280433 A212986
KEYWORD
nonn,easy,less
AUTHOR
EXTENSIONS
Corrected by Charles R Greathouse IV, Mar 25 2010
STATUS
approved

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Last modified March 18 22:56 EDT 2024. Contains 370952 sequences. (Running on oeis4.)