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A055148
The first n digits of the juxtaposition of the base-7 numbers converted to decimal.
0
1, 9, 66, 466, 3267, 22875, 160126, 1120882, 7846175, 54923226, 384462583, 2691238083, 18838666582, 131870666077, 923094662540, 6461662637784, 45231638464489, 316621469251428, 2216350284759997, 15514451993319985
OFFSET
1,2
EXAMPLE
1 (1); 12 (9); 123 (66); 1234 (466); 12345 (3267); 123456 (22875); ...
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Patrick De Geest, Apr 15 2000
STATUS
approved