%I #11 May 06 2022 13:13:51
%S 1,6,123,617,24681,6170253,1234050607,30851265177,12340506070809,
%T 123405060708091,123405060708091011,1542563258851137639,
%U 1234050607080910111213,61702530354045505560657,2468101214161820222426283,308512651770227527803285379,123405060708091011121314151617
%N Smallest integer multiple of the decimal number N = 0.246...up to 2n (decimal point followed by concatenation of 2 through 2n of first n even numbers).
%o (PARI) a(n) = {my(s = ""); for (k=1, n, s = concat(s, Str(2*k))); numerator(eval(s)/10^(#s));} \\ _Michel Marcus_, Jan 15 2019
%Y Cf. A078258 (similar, with concatenation of 1 to n), A078260 (denominators).
%K base,nonn
%O 1,2
%A _Amarnath Murthy_, Nov 24 2002
%E More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 19 2003
%E More terms from _Michel Marcus_, Jan 15 2019