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A279963
Numbers n such that there exists a base in which some multiple of n is an anagram of n.
2
0, 8, 12, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 33, 35, 36, 39, 40, 42, 44, 45, 48, 51, 52, 55, 56, 57, 60, 63, 64, 65, 66, 68, 69, 70, 72, 75, 76, 77, 78, 80, 84, 85, 86, 87, 88, 90, 91, 92, 93, 95, 96, 98, 99, 100, 102, 104, 105, 108, 110, 111, 112, 114
OFFSET
1,2
EXAMPLE
a(2) = 8: 8 and 2*8 are anagrams in base 5 (13_5 and 31_5).
a(3) = 12: 12 and 3*12 are anagrams in base 7 (15_7 and 51_7).
a(4) = 15: 15 and 3*15 are anagrams in base 11 (14_11 and 41_11).
a(5) = 16: 16 and 4*16 are anagrams in base 9 (17_9 and 71_9).
a(6) = 18: 18 and 2*18 are anagrams in base 4 (102_4 and 210_4).
CROSSREFS
Sequence in context: A114414 A032455 A342809 * A050275 A363863 A033949
KEYWORD
nonn,base
AUTHOR
Peter Kagey, Dec 23 2016
STATUS
approved