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A105416 Numbers that are pandigital in Roman numerals using each of the symbols I, V, X, L, C, D and M exactly once. 2

%I

%S 1444,1446,1464,1466,1644,1646,1664,1666

%N Numbers that are pandigital in Roman numerals using each of the symbols I, V, X, L, C, D and M exactly once.

%C Subset of A105417.

%e a(1) = 1444 because written in Roman numeral it is MCDXLIV, using each of the symbols I, V, X, L, C, D and M exactly once.

%o (PARI) A105416=vector(8,n,n--+722+n\2*8+n\4*80)*2 \\ _M. F. Hasler_, Jul 10 2018

%Y Cf. A061493, A105417.

%K base,fini,full,nonn

%O 1,1

%A Robert Happelberg (roberthappelberg(AT)yahoo.com), Apr 06 2005

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Last modified April 4 21:43 EDT 2020. Contains 333238 sequences. (Running on oeis4.)