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 A200050 a(2) = 1, then (p-1)*(p-4)/2, with p = prime(n), n > 2. 2
 1, 2, 9, 35, 54, 104, 135, 209, 350, 405, 594, 740, 819, 989, 1274, 1595, 1710, 2079, 2345, 2484, 2925, 3239, 3740, 4464, 4850, 5049, 5459, 5670, 6104, 7749, 8255, 9044, 9315, 10730, 11025, 11934, 12879, 13529, 14534, 15575, 15930, 17765, 18144, 18914, 19305 (list; graph; refs; listen; history; text; internal format)
 OFFSET 2,2 COMMENTS Record values in A192599. The index sequence of this one is 1, 2, 3, 6, 7, 9, 11, 13, 17, 18, 21, 23, 25, 29, 31, 34, 36, 40, 42, 45, 47, 50, 52, 56, 58, 61. LINKS Arkadiusz Wesolowski, Table of n, a(n) for n = 2..10000 FORMULA a(2) = 1, a(n) = A006093(n)*A172367(n-2)/2. EXAMPLE A192599(13) = 209 since A192599(17) = 350 is the next record value. MATHEMATICA Table[p = Prime[n + 1]; (p - 1)*Abs[p - 4]/2, {n, 45}] Join[{1}, ((#-1)(#-4))/2&/@Prime[Range[3, 50]]] (* Harvey P. Dale, Aug 04 2020 *) PROG (MAGMA) [(p-1)*Abs(p-4)/2: p in [NthPrime(n+1): n in [1..45]]] (PARI) vector(45, n, p=prime(n+1); (p-1)*abs(p-4)/2) CROSSREFS Cf. A000096, A014107, A192599. Sequence in context: A140217 A182407 A284550 * A032601 A255410 A083141 Adjacent sequences:  A200047 A200048 A200049 * A200051 A200052 A200053 KEYWORD nonn AUTHOR Arkadiusz Wesolowski, Apr 16 2012 STATUS approved

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Last modified December 2 06:44 EST 2020. Contains 338868 sequences. (Running on oeis4.)