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 A248142 Least positive integer m such that m + n divides A(m) + A(n), where A(.) is given by A005259. 6
 1, 1, 7, 2238, 5, 9, 3, 3, 1, 2484, 2, 2, 26, 12, 24, 5, 41, 32, 14, 3, 29, 29, 6, 15, 30, 7, 8, 37, 21, 5, 44, 18, 5, 16, 39, 34, 8, 1, 6, 5, 17, 8, 26, 6, 865, 39, 8, 13, 16, 781, 356, 35, 184, 65, 30, 139, 18, 25, 16, 123 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS Conjecture: a(n) exists for any n > 0. LINKS Zhi-Wei Sun, Table of n, a(n) for n = 1..2853 EXAMPLE a(3) = 7 since 3 + 7 = 10 divides A(3) + A(7) = 1445 + 584307365 = 584308810. MATHEMATICA A[0]=1; A[1]=5 A[n_]:=((2n-1)(17*n(n-1)+5)*A[n-1]-(n-1)^3*A[n-2])/n^3 Do[m=1; Label[aa]; If[Mod[A[m]+A[n], m+n]==0, Print[n, " ", m]; Goto[bb]]; m=m+1; Goto[aa]; Label[bb]; Continue, {n, 1, 60}] CROSSREFS Cf. A005259, A247824, A247937, A247940, A248124, A248125, A248133, A248136, A248137, A248139. Sequence in context: A129732 A186164 A203686 * A216472 A065505 A067511 Adjacent sequences: A248139 A248140 A248141 * A248143 A248144 A248145 KEYWORD nonn AUTHOR Zhi-Wei Sun, Oct 02 2014 STATUS approved

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Last modified September 25 02:38 EDT 2023. Contains 365582 sequences. (Running on oeis4.)