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 A049796 a(n) = T(n,n-4), array T as in A049790. 7
 1, 2, 3, 4, 5, 9, 16, 22, 32, 39, 53, 64, 79, 91, 113, 124, 147, 166, 188, 208, 238, 256, 288, 313, 344, 371, 411, 434, 473, 509, 548, 580, 629, 657, 709, 749, 796, 837, 893, 928, 987, 1038, 1093, 1136, 1206, 1246, 1314, 1371, 1431 (list; graph; refs; listen; history; text; internal format)
 OFFSET 5,2 LINKS G. C. Greubel, Table of n, a(n) for n = 5..1000 MAPLE seq( `if`(n<9, n-4, add(floor((n-4)/floor((n-8)/j)), j=1..n-8)), n=5..60); # G. C. Greubel, Dec 10 2019 MATHEMATICA Table[If[n<9, n-4, Sum[Floor[(n-4)/Floor[(n-8)/j]], {j, n-8}]], {n, 5, 60}] (* G. C. Greubel, Dec 10 2019 *) PROG (PARI) a(n) = if(n<9, n-4, sum(j=1, n-8, (n-4)\((n-8)\j)) ); vector(60, n, a(n+4) ) \\ G. C. Greubel, Dec 10 2019 (Magma) [n lt 9 select n-4 else (&+[Floor((n-4)/Floor((n-8)/j)): j in [1..n-8]]): n in [5..60]]; // G. C. Greubel, Dec 10 2019 (Sage) def a(n): if (n<9): return n-4 else: return sum(floor((n-4)/floor((n-8)/j)) for j in (1..n-8)) [a(n) for n in (5..60)] # G. C. Greubel, Dec 10 2019 (GAP) a:= function(n) if n<9 then return n-4; else return Sum([1..n-8], j-> Int((n-4)/Int((n-8)/j)) ); fi; end; List([5..60], n-> a(n) ); # G. C. Greubel, Dec 10 2019 CROSSREFS Cf. A049790, A049791, A049792, A049793, A049794, A049795. Sequence in context: A107799 A329049 A003271 * A106165 A305237 A088817 Adjacent sequences: A049793 A049794 A049795 * A049797 A049798 A049799 KEYWORD nonn AUTHOR Clark Kimberling STATUS approved

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Last modified June 17 07:14 EDT 2024. Contains 373433 sequences. (Running on oeis4.)