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 A122469 Write Roman numerals I, V, X, L, C, D, M in increasing order: [I], [I][V], [I][V][X], ..., etc. 0
 1, 15, 1510, 151050, 151050100, 151050100500, 1510501005001000 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS From a quiz. REFERENCES K. Russell and P. Carter, Number Puzzles, W. Foulsham and Co. Ltd. (1993). LINKS Table of n, a(n) for n=1..7. EXAMPLE [I] = [1]. [I][V] = [1][5]. [I][V][X] = [1][5][10]. [I][V][X][L] = [1][5][10][50]. [I][V][X][L][C] = [1][5][10][50][100]. [I][V][X][L][C][D] = [1][5][10][50][100][500]. [I][V][X][L][C][D][M] = [1][5][10][50][100][500][1000]. CROSSREFS Sequence in context: A200994 A338634 A209680 * A119784 A199228 A344638 Adjacent sequences: A122466 A122467 A122468 * A122470 A122471 A122472 KEYWORD nonn,base,fini,full AUTHOR Herman Jamke (hermanjamke(AT)fastmail.fm), Sep 14 2006 EXTENSIONS Edited by Michel Marcus, Aug 06 2013 STATUS approved

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Last modified September 17 21:55 EDT 2024. Contains 375990 sequences. (Running on oeis4.)