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 A231900 Omit the 1s from first differences of A084663. 2
 2, 7, 13, 5, 29, 3, 59, 3, 7, 5, 3, 131, 3, 263, 3, 17, 3, 5, 3, 19, 569, 3, 17, 3, 13, 7, 5, 3, 1181, 3, 17, 3, 2381, 3, 11, 3, 5, 3, 7, 4787, 3, 5, 3, 11, 3, 53, 3, 11, 3, 13, 19, 9689, 3, 19379, 3, 7, 5, 3, 137, 3, 13, 38921, 3, 17, 3, 7, 77867, 3, 5, 3 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Terms greater than 1 in A134744. LINKS Reinhard Zumkeller, Table of n, a(n) for n = 1..120 Eric S. Rowland, A simple prime-generating recurrence MATHEMATICA DeleteCases[Differences[RecurrenceTable[{a[1]==8, a[n]==a[n-1]+GCD[ a[n-1], n]}, a, {n, 100000}]], 1] (* Harvey P. Dale, Apr 12 2016 *) PROG (Haskell) a231900 n = a231900_list !! (n-1) a231900_list = filter (> 1) a134744_list CROSSREFS Cf. A137613. Sequence in context: A230637 A301852 A103886 * A323740 A130710 A145300 Adjacent sequences:  A231897 A231898 A231899 * A231901 A231902 A231903 KEYWORD nonn AUTHOR Reinhard Zumkeller, Nov 15 2013 STATUS approved

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Last modified January 20 21:46 EST 2022. Contains 350472 sequences. (Running on oeis4.)