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 A099543 Sums of the prime factors of the Rhonda numbers to base 10 (sequence A099542). The terms in this sequence are equal to (Product of digits of terms of A099542)/10, which is simply the definition of Rhonda numbers to base 10. 1
 24, 24, 28, 30, 54, 72, 32, 24, 48, 72, 30, 216, 54, 64, 72, 126, 162, 60, 90, 168, 504, 84, 63, 84, 504, 70, 270, 168, 54, 96, 252, 288, 96, 168, 343, 784, 96, 216, 405, 96, 324, 108, 48, 1260, 160, 144, 192, 1134, 243, 252, 1080, 72, 192, 144, 486, 81, 48 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS a(n) = A001414(A099542(n)). - Reinhard Zumkeller, Dec 01 2012 LINKS Reinhard Zumkeller, Table of n, a(n) for n = 1..1000 Eric Weisstein's World of Mathematics, Rhonda Number EXAMPLE The first term in A099542 is 1568. The sum of its prime factors is 24. MATHEMATICA rnQ[n_]:=Times@@IntegerDigits[n]==10Total[Times@@@FactorInteger[n]]; Times@@IntegerDigits[#]/10&/@ Select[Range[350000], rnQ] (* Harvey P. Dale, Mar 13 2011 *) PROG (Haskell) a099543 = a001414 . a099542 -- Reinhard Zumkeller, Dec 01 2012 CROSSREFS Cf. A099542. Sequence in context: A217140 A235249 A115028 * A188311 A185497 A186939 Adjacent sequences: A099540 A099541 A099542 * A099544 A099545 A099546 KEYWORD nonn,base AUTHOR Mark Hudson (mrmarkhudson(AT)hotmail.com), Oct 21 2004 EXTENSIONS More terms from Harvey P. Dale, Mar 13 2011. STATUS approved

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Last modified April 20 12:36 EDT 2024. Contains 371844 sequences. (Running on oeis4.)