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The Roman numerals, with "i" replaced by "1", "v" replaced by "5", "x" replaced by 10, etc.
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%I #5 Jul 25 2016 10:11:00

%S 1,11,111,15,5,51,511,5111,110,10,101,1011,10111,1015,105,1051,10511,

%T 105111,10110,1010,10101,101011,1010111,101015,10105,101051,1010511,

%U 10105111,1010110,101010,1010101,10101011,101010111,10101015,1010105

%N The Roman numerals, with "i" replaced by "1", "v" replaced by "5", "x" replaced by 10, etc.

%C A more compact and easier to parse version is A061493, where I, V, X, L, ... are replaced by 1, 2, 3, 4, ... The terms of this sequence can be converted to those of A061493 by changing digits '5' to '2' and deleting each digit '0' upon increasing by 2 the nonzero digit to its left. - _M. F. Hasler_, Jul 25 2016

%o (PARI) {A093788(n)=A061493(n,,[1000, 1000, 900, 1001000, 500, 500, 400, 100500, 100, 100, 90, 10100, 50, 50, 40, 1050, 10, 10, 9, 110, 5, 5, 4, 15, 1, 1])} \\ _M. F. Hasler_, Jul 25 2016

%Y Cf. A006968, A002963, A003587, A036787, A057226.

%Y Cf. A036746, A036786, A036788, A160676, A160677, A199921.

%K base,easy,nonn

%O 1,2

%A William J. Rapaport (rapaport(AT)buffalo.edu), May 17 2004

%E Cross-references added and data double-checked by _M. F. Hasler_, Jul 25 2016