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A044549
Numbers n such that string 4,2 occurs in the base 7 representation of n but not of n+1.
0
30, 79, 128, 177, 216, 226, 275, 324, 373, 422, 471, 520, 559, 569, 618, 667, 716, 765, 814, 863, 902, 912, 961, 1010, 1059, 1108, 1157, 1206, 1245, 1255, 1304, 1353, 1402, 1451, 1518, 1549, 1588, 1598, 1647, 1696, 1745, 1794
OFFSET
1,1
MATHEMATICA
SequencePosition[Table[If[SequenceCount[IntegerDigits[n, 7], {4, 2}]>0, 1, 0], {n, 2000}], {1, 0}][[;; , 1]] (* Harvey P. Dale, Nov 02 2024 *)
CROSSREFS
Sequence in context: A159219 A098998 A044168 * A353176 A155461 A165772
KEYWORD
nonn,base,changed
STATUS
approved