A346404 Decimal expansion of Sum_{k>=1} A003418(k)/k!.
4, 1, 9, 5, 9, 5, 3, 5, 5, 6, 0, 6, 6, 5, 1, 9, 6, 4, 2, 0, 1, 3, 7, 5, 3, 5, 4, 0, 1, 7, 5, 5, 8, 5, 2, 2, 7, 7, 3, 0, 3, 9, 7, 0, 1, 4, 1, 4, 9, 4, 8, 3, 9, 6, 3, 3, 2, 7, 3, 8, 8, 1, 4, 6, 4, 5, 2, 0, 9, 9, 8, 0, 6, 8, 4, 6, 0, 4, 2, 1, 3, 0, 0, 6, 1, 8, 3, 4, 5, 5, 9, 5, 5, 1, 8, 1, 6, 5, 3, 7
Offset: 1
Examples
4.19595355606651964201375354017558522773039701414948...
Links
- Felice Russo, On three problems concerning the Smarandache LCM sequence, Smarandache Notions Journal, Vol. 12, No. 1-3 (2001), pp. 153-156.
- József Sándor, Geometric theorems, diophantine equations and arithmetic functions, American Research Press, Rehoboth, NM, USA, 2002. See p. 255.
Programs
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Mathematica
RealDigits[Sum[LCM @@ Range[k]/k!, {k, 1, 100}], 10, 100][[1]]
Comments