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 A147842 Sum of all balanced numbers less than 10^n. 1
 45, 540, 50040, 3364890, 334795890, 27671338200, 2761284321300, 241066406350560, 24071550717893160, 2164109364980520560, 216167870783354294560, 19804111510101766391920, 1978598460245429017365520, 183672136030518949796846320 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS See reference for definition of balanced number. Partial sums of A147808. Up to n=3, equal to the sum of palindromes A002113 < 10^n; then it differs from this sequence by the sum of terms < 10^n in A145808. - M. F. Hasler, Nov 23 2008 LINKS Wei Zhou, Table of n, a(n) for n = 1..46 Project Euler Problem 217 FORMULA a(n) = Sum_{k=1..n} A147808(k). - M. F. Hasler, Nov 23 2008 PROG (PARI) s=0; A147842 = vector(13, k, s+=A147808(k)) \\ M. F. Hasler, Nov 23 2008 CROSSREFS Sequence in context: A197501 A283116 A223047 * A027783 A160837 A160838 Adjacent sequences:  A147839 A147840 A147841 * A147843 A147844 A147845 KEYWORD nonn,base AUTHOR Alexis Olson (AlexisOlson(AT)gmail.com), Nov 14 2008 EXTENSIONS a(9) - a(12) and link to A147808 by M. F. Hasler, Nov 23 2008 a(13) - a(46) added by Wei Zhou, Oct 10 2011 STATUS approved

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Last modified October 14 16:48 EDT 2019. Contains 328022 sequences. (Running on oeis4.)