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 A117531 Number of primes in the n-th row of the triangle in A117530. 5
 1, 2, 3, 3, 5, 3, 7, 3, 5, 6, 6, 6, 13, 3, 11, 8, 12, 8, 13, 10, 8, 7, 12, 10, 9, 21, 6, 22, 11, 7, 13, 12, 21, 13, 14, 16, 18, 7, 20, 17, 21, 20, 24, 14, 18, 20, 16, 16, 35, 10, 18, 29, 18, 30, 30, 26, 21, 18, 21, 29, 16, 22, 32, 40, 10, 27, 24, 25, 45, 18, 39, 40, 43, 11, 11 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS 1 <= a(n) <= n; conjecture: a(n) < n for n>13. LINKS FORMULA a(n) = Sum(A010051(A117530(n,k)): 1 <= k <= n). CROSSREFS Sequence in context: A214127 A111607 A327124 * A275940 A105555 A066858 Adjacent sequences:  A117528 A117529 A117530 * A117532 A117533 A117534 KEYWORD nonn AUTHOR Reinhard Zumkeller, Mar 25 2006 STATUS approved

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Last modified September 17 06:52 EDT 2019. Contains 327119 sequences. (Running on oeis4.)