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A078205
a(n) = A078204(n)/N where N = concatenation of 1 up to n.
1
1, 18, 261, 3502, 44003, 530004, 6200005, 71000006, 800000008, 8900000074, 8999000074522, 98099900812365, 10628099988011209, 11446281093786559142, 122644629115519160114, 13082644736437172941406, 139008265613936288720365
OFFSET
1,2
EXAMPLE
a(3) = 261 = 32103/123.
CROSSREFS
Cf. A078204.
Sequence in context: A255379 A255380 A255381 * A316698 A254248 A080583
KEYWORD
base,nonn
AUTHOR
Amarnath Murthy, Nov 22 2002
EXTENSIONS
More terms from Sascha Kurz, Jan 04 2003
STATUS
approved