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A260055 Composites whose prime factorization in base 12 is an anagram of the number in base 12. 11
169, 185, 219, 2165, 2402, 3981, 4205, 10031, 21349, 21907, 22049, 24199, 26919, 27746, 28802, 29767, 29919, 31107, 46749, 71375, 251521, 252257, 252361, 259565, 275237, 280587, 292159, 293011, 301163, 303161, 305765 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
169 = 13^2. In base 12, 121 = 11^2.
PROG
(PARI) isok(n, b) = {f = factor(n); v = []; for (i=1, #f~, v = concat(v, digits(f[i, 1], b)); if (f[i, 2]!= 1, v = concat(v, digits(f[i, 2], b))); ); vecsort(v) == vecsort(digits(n, b)); }
lista(nn, b=12) = forcomposite(n=1, nn, if (isok(n, b), print1(n, ", "))); \\ Michel Marcus, Jul 14 2015
CROSSREFS
Sequence in context: A240069 A184035 A044869 * A235718 A239724 A038512
KEYWORD
base,easy,nonn
AUTHOR
Stephen Tucker, Jul 14 2015
STATUS
approved

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Last modified March 1 20:05 EST 2024. Contains 370443 sequences. (Running on oeis4.)