OFFSET
1,2
EXAMPLE
a(5) = 12 because the smallest number with 12 divisors (60) is a multiple of 5. a(5) cannot be 8 because 24, which is not a multiple of 5, is the smallest number with 8 divisors.
PROG
(PARI) findsmd(n, vndiv) = {d = 1; while ( vndiv[d] % n, d++); d; }
lista(nn) = {v005179 = readvec("b005179.log"); for(n = 1, nn, print1(findsmd(n, v005179), ", "); ); } \\ Michel Marcus, Feb 11 2014
CROSSREFS
KEYWORD
nonn,hard
AUTHOR
J. Lowell, Sep 06 2008
EXTENSIONS
a(7)-a(22) from R. J. Mathar, Nov 02 2008
a(23)-a(58) from Iain Fox, Sep 14 2020
STATUS
approved