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 A143236 a(n) = A000005(n) * A006218(n). 3
 1, 6, 10, 24, 20, 56, 32, 80, 69, 108, 58, 210, 74, 164, 180, 250, 104, 348, 120, 396, 280, 296, 152, 672, 261, 364, 380, 606, 206, 888, 226, 714, 492, 508, 524, 1260, 284, 584, 600, 1264, 320, 1344, 340, 1056, 1092, 744, 376, 1980, 603, 1242, 844, 1302, 438, 1816, 924 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Robert Israel, Table of n, a(n) for n = 1..10000 EXAMPLE a(4) = 24 = A000005(4) * A006218(4) = 3*8. a(4) = 24 = sum of row 4 terms of triangle A143235: (3 + 6 + 6 + 9). PROG (PARI) A006218(n)=sum(k=1, sqrtint(n), n\k)*2-sqrtint(n)^2 a(n)=A006218(n)*numdiv(n) \\ Charles R Greathouse IV, Nov 03 2021 CROSSREFS Row sums of triangle A143235 Cf. A000005, A006218, A143235. Sequence in context: A132994 A199885 A024499 * A107306 A108899 A074289 Adjacent sequences: A143233 A143234 A143235 * A143237 A143238 A143239 KEYWORD nonn AUTHOR Gary W. Adamson, Aug 01 2008 EXTENSIONS More terms from N. J. A. Sloane, Oct 19 2008 STATUS approved

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Last modified October 1 15:27 EDT 2023. Contains 365826 sequences. (Running on oeis4.)