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0, 12345679, 24691358, 37037037, 49382716, 61728395, 74074074, 86419753, 98765432, 111111111, 123456790, 135802469, 148148148, 160493827, 172839506, 185185185, 197530864, 209876543, 222222222, 234567901, 246913580, 259259259
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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COMMENTS
| a(82)=1012345678 is the first term which has a digit appearing more than once without an obvious pattern, although a(-82)=-1012345678 might be seen as the concatenation of ten consecutive numbers.
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LINKS
| Tanya Khovanova, Recursive Sequences
Index to sequences with linear recurrences with constant coefficients, signature (2,-1).
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FORMULA
| a(n)=n*(10^(10-1)-1)/(10-1)^2
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PROG
| (PARI) a(n)=12345679*n \\ Charles R Greathouse IV, Jan 09 2012
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CROSSREFS
| Cf. A027889, A057932, A060073.
Sequence in context: A164338 A178478 A077302 * A178069 A167233 A187399
Adjacent sequences: A070186 A070187 A070188 * A070190 A070191 A070192
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KEYWORD
| base,easy,nonn
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AUTHOR
| Henry Bottomley (se16(AT)btinternet.com), Apr 24 2002
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