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 A072055 a(n) = 2*prime(n)+1. 19
 5, 7, 11, 15, 23, 27, 35, 39, 47, 59, 63, 75, 83, 87, 95, 107, 119, 123, 135, 143, 147, 159, 167, 179, 195, 203, 207, 215, 219, 227, 255, 263, 275, 279, 299, 303, 315, 327, 335, 347, 359, 363, 383, 387, 395, 399, 423, 447, 455, 459, 467, 479 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Reinhard Zumkeller, Table of n, a(n) for n = 1..10000 R. P. Boas & N. J. A. Sloane, Correspondence, 1974 FORMULA a(n) = A089241(n)-1. MATHEMATICA 2*Prime[Range[60]]+1  (* Harvey P. Dale, Mar 31 2011 *) PROG (Haskell) a072055 = (+ 1) . (* 2) . a000040  -- Reinhard Zumkeller, Oct 10 2013 CROSSREFS Cf. A005385, A000040, A023589, A023590, A023591, A023592, A023593, A072059, A023595, A072060, A072056, A072057, A072058, A072192, A165286, A278230. One less than A089241. After the initial term equal to A166496. Row 4 of A286625, column 4 of A286623. Sequence in context: A073088 A054059 A072058 * A314300 A189320 A107448 Adjacent sequences:  A072052 A072053 A072054 * A072056 A072057 A072058 KEYWORD nonn AUTHOR Reinhard Zumkeller, Jun 11 2002 STATUS approved

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Last modified October 20 07:33 EDT 2019. Contains 328252 sequences. (Running on oeis4.)