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 A097997 Primes of the form prime(n) + prime(n+1) + prime(n+4). 1
 29, 37, 47, 59, 67, 79, 103, 131, 151, 167, 193, 233, 263, 293, 307, 317, 337, 347, 359, 379, 419, 433, 467, 499, 557, 571, 613, 743, 761, 797, 823, 977, 997, 1021, 1063, 1091, 1109, 1129, 1163, 1181, 1279, 1373, 1487, 1511, 1553, 1601, 1627, 1657, 1697, 1733 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Vincenzo Librandi, Table of n, a(n) for n = 1..1000 EXAMPLE a(4) = 59 because 13 + 17 + 29 = 59. MATHEMATICA Select[p = Prime@ Range@ 108; p[[#]] + p[[#+1]] + p[[#+4]] & /@ Range@ 104, PrimeQ@# &] (* Robert G. Wilson v, Mar 01 2007 *) Select[Table[(Prime[n]+Prime[n+1]+Prime[n+4]), {n, 700}], PrimeQ[#]&] (* Vincenzo Librandi, Jul 17 2012 *) Select[#[[1]]+#[[2]]+#[[5]]&/@Partition[Prime[Range[200]], 5, 1], PrimeQ] (* Harvey P. Dale, Jul 27 2017 *) CROSSREFS Sequence in context: A046502 A255204 A049746 * A177873 A234973 A134100 Adjacent sequences: A097994 A097995 A097996 * A097998 A097999 A098000 KEYWORD nonn,easy AUTHOR Giovanni Teofilatto, Sep 08 2004 EXTENSIONS Corrected and extended by Robert G. Wilson v, Mar 01 2007 Typos in first Mma program corrected by Giovanni Resta, Jun 12 2016 STATUS approved

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Last modified February 26 02:01 EST 2024. Contains 370335 sequences. (Running on oeis4.)