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 A116964 Sum of all n-digit Lucas numbers. 0
 17, 181, 2008, 22269, 143285, 1692737, 18772741, 208192888, 2308894509, 14856075365, 175506357617, 1946395332181, 21585855011608, 138889450176440, 1640808956134074, 18196850168753057, 201806160812417701, 2238064619105347768, 14400335971854080600, 170122354174067662074 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS EXAMPLE The sum of all 1-digit Lucas numbers is 17, so a(1) = 17. The sum of all 2-digit Lucas numbers is 181, so a(2) = 181. MATHEMATICA Total/@Table[Select[Table[LucasL[n], {n, 0, 95}], IntegerLength[#]==i&], {i, 20}]  (* Harvey P. Dale, Mar 31 2011 *) nn = 20; t = Table[0, {nn}]; k = 0; While[luc = LucasL[k]; d = IntegerLength[luc]; d <= nn, t[[d]] = t[[d]] + luc; k++]; t (* T. D. Noe, Mar 31 2011 *) CROSSREFS Cf. A000032, A127390, A128823. Sequence in context: A142214 A066521 A055904 * A167578 A181401 A243419 Adjacent sequences:  A116961 A116962 A116963 * A116965 A116966 A116967 KEYWORD nonn,base AUTHOR Parthasarathy Nambi, May 27 2007 EXTENSIONS More terms from Harvey P. Dale, Mar 31 2011. STATUS approved

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Last modified October 23 17:32 EDT 2019. Contains 328373 sequences. (Running on oeis4.)