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A044817
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Positive integers having distinct base-6 run lengths.
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17
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1, 2, 3, 4, 5, 7, 14, 21, 28, 35, 36, 42, 43, 44, 45, 46, 47, 50, 57, 64, 71, 72, 79, 84, 85, 86, 87, 88, 89, 93, 100, 107, 108, 115, 122, 126, 127, 128, 129, 130, 131, 136, 143, 144, 151, 158, 165, 168, 169, 170, 171, 172, 173, 179, 180, 187, 194, 201, 208, 210, 211
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OFFSET
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1,2
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LINKS
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EXAMPLE
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93 = 233_6 is in the sequence as it has distinct run lengths of same digits (1, 2). - David A. Corneth, Jan 04 2021
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MAPLE
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filter:= proc(n) local L, R, s, t, i;
L:= convert(n, base, 6);
R:= NULL; t:= 1; s:= L[1];
for i from 2 to nops(L) do
if L[i] <> s then
R:= R, t; t:= 1; s:= L[i]
else
t:= t+1
fi
od;
R:= R, t;
nops([R]) = nops({R})
end proc:
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CROSSREFS
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Cf. A044813, A044814, A044815, A044816, A044817, A044818, A044819, A044820, A044821, A044822, A044823, A044824, A044825, A044826, A044827 (base 2 to base 16).
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KEYWORD
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nonn,base
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AUTHOR
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STATUS
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approved
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