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A050240
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Handsome numbers (A007532) representable as a sum of any positive powers of their digits in two distinct ways, not counting different powers of duplicated digits as distinct.
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3
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264, 373, 375, 2132, 2223, 2241, 2243, 2245, 2263, 2336, 2352, 2356, 2372, 2376, 2427, 2536, 2664, 2733, 2843, 2932, 3257, 3292, 3324, 3342, 3435, 3437, 3457, 3477, 3945, 4132, 4154, 4194, 4225, 4241, 4249, 4262, 4265, 4332, 4352, 4353
(list;
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listen;
history;
text;
internal format)
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OFFSET
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1,1
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LINKS
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EXAMPLE
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264 = 2^1 + 6^1 + 4^4 = 2^5 + 6^3 + 4^2.
2536 = 2^3 + 5^3 + 3^7 + 6^3 = 2^7 + 5^1 + 3^7 + 6^3.
4262 = 4^6 + 2^1 + 6^2 + 2^7 = 4^6 + 2^5 + 6^1 + 2^7 (not regarded distinct = 4^6 + 2^7 + 6^1 + 2^5 = 4^6 + 2^7 + 6^2 + 2^1). (End)
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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