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Search: id:A061845
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| A061845 |
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Numbers which have one of every digit in some base. |
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+0
2
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| 2, 11, 15, 19, 21, 75, 78, 99, 108, 114, 120, 135, 141, 147, 156, 177, 180, 198, 201, 210, 216, 225, 228, 694, 698, 714, 722, 738, 742, 894, 898, 954, 970, 978, 990, 1014, 1022, 1054, 1070, 1102, 1110, 1138, 1142, 1178, 1190, 1202, 1210, 1294, 1298, 1334
(list; graph; listen)
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OFFSET
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0,1
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EXAMPLE
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19 = 201 in base 3
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MATHEMATICA
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dtn[ L_, base_ ] := Fold[ base*#1+#2&, 0, L ] f[ n_ ] := Map[ dtn[ #, n ]&, Select[ Permutations[ Range[ 0, n-1 ] ], First[ # ]>0& ] ] Flatten[ Join[ Table[ f[ i ], {i, 2, 5} ] ] ]
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CROSSREFS
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Sequence in context: A031192 A034039 A077475 this_sequence A091211 A012019 A012185
Adjacent sequences: A061842 A061843 A061844 this_sequence A061846 A061847 A061848
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KEYWORD
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base,easy,nice,nonn
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AUTHOR
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Erich Friedman (efriedma(AT)stetson.edu), Jun 23 2001
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