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 A061845 Numbers that have one of every digit in some base. 7
 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; refs; listen; history; text; internal format)
 OFFSET 2,1 COMMENTS Also known as pandigital numbers, especially in base 10. LINKS Alois P. Heinz, Rows n = 2..8, flattened EXAMPLE Base 3 values are 102_3 = 11, 120_3 = 15, 201_3 = 19, 210_3 = 21. Triangle begins:     2;    11,  15,  19,  21;    75,  78,  99, 108, 114, 120, 135, 141, 147, 156, 177, 180,  198,  201, ...   694, 698, 714, 722, 738, 742, 894, 898, 954, 970, 978, 990, 1014, 1022, ...   ... MATHEMATICA 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} ] ] ] CROSSREFS Column k=1 gives A049363 (for n>1). Last elements of rows give A062813. Cf. A050278, A134640, A001563 (row lengths). Sequence in context: A077475 A168498 A255370 * A297836 A241757 A272883 Adjacent sequences:  A061842 A061843 A061844 * A061846 A061847 A061848 KEYWORD base,easy,nice,nonn,tabf AUTHOR Erich Friedman, Jun 23 2001 STATUS approved

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Last modified August 14 17:12 EDT 2022. Contains 356122 sequences. (Running on oeis4.)