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A309539
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Positive numbers that contain both odd and even digits, with no digit repeated.
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1
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10, 12, 14, 16, 18, 21, 23, 25, 27, 29, 30, 32, 34, 36, 38, 41, 43, 45, 47, 49, 50, 52, 54, 56, 58, 61, 63, 65, 67, 69, 70, 72, 74, 76, 78, 81, 83, 85, 87, 89, 90, 92, 94, 96, 98, 102, 103, 104, 105, 106, 107, 108, 109, 120, 123, 124, 125, 126, 127, 128, 129, 130, 132, 134, 136
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listen;
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internal format)
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OFFSET
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1,1
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COMMENTS
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Unlike A318700, where digits can be repeated, this sequence is finite; last term is 9876543210.
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LINKS
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EXAMPLE
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49 and 50 are in the sequence but 19 and 20 are not.
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MATHEMATICA
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boeQ[n_]:=Max[DigitCount[n]]==1&&IntegerLength[n]>Count[ IntegerDigits[ n], _?EvenQ]>0; Select[Range[150], boeQ] (* Harvey P. Dale, Jul 02 2020 *)
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PROG
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(PARI) isok(n) = my(d=digits(n)); (#d == #Set(d)) && #select(x->(x%2), d) && #select(x->!(x%2), d); \\ Michel Marcus, Aug 07 2019
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CROSSREFS
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KEYWORD
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nonn,base,fini
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AUTHOR
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STATUS
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approved
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