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 A141323 Number of groups of order L(n). 2
 1, 1, 1, 2, 1, 1, 5, 1, 1, 4, 1, 1, 4, 2, 1, 9, 1, 1, 30, 1, 1, 11, 5, 1, 4, 1, 2, 9, 2, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,4 COMMENTS This is to A140987 as Lucas numbers A000032 are to Fibonacci numbers A000045. LINKS FORMULA a(n) = A000001(A000032(n)). EXAMPLE a(6) = 5 because the Lucas number L(6) (starting at L(0) = 2) is 18 and there are 5 groups of order 18. CROSSREFS Cf. A000001, A000032, A000045, A140987. Sequence in context: A088347 A069568 A210545 * A210876 A174785 A136789 Adjacent sequences:  A141320 A141321 A141322 * A141324 A141325 A141326 KEYWORD more,nonn AUTHOR Jonathan Vos Post, Aug 02 2008 EXTENSIONS a(16)-a(29) from Eric M. Schmidt, Jun 20 2014 STATUS approved

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Last modified June 1 02:09 EDT 2020. Contains 334758 sequences. (Running on oeis4.)