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 A019522 Concatenate cubes. 1
 1, 18, 1827, 182764, 182764125, 182764125216, 182764125216343, 182764125216343512, 182764125216343512729, 1827641252163435127291000, 18276412521634351272910001331, 182764125216343512729100013311728 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 REFERENCES S. Smarandoiu, Convergence of Smarandache continued fractions, Abstract 96T-11-195, Abstracts Amer. Math. Soc., 17 (No. 4, 1996), 680. Y. Guo, M. Le, Smarandache Concatenated Power Decimals and Their Irrationality, Smarandache Notions Journal, Vol. 9, No. 1-2. 1998, 100-102. LINKS Eric Weisstein's World of Mathematics, Consecutive Number Sequences FORMULA a(n)=a(n-1)*10^floor[1+log10(n^3)]+n^3, with a(1)=1 - Paolo P. Lava, Jun 20 2008 MAPLE P:=proc(i) local a, n; a:=1; print(1); for n from 2 by 1 to i do a:=a*10^floor(evalf(1+log10(n^3), 1000))+n^3; print(a); od; end: P(100); - Paolo P. Lava, Jun 20 2008 CROSSREFS Sequence in context: A067303 A055740 A072477 * A068181 A178630 A136834 Adjacent sequences:  A019519 A019520 A019521 * A019523 A019524 A019525 KEYWORD base,nonn,easy AUTHOR R. Muller STATUS approved

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