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A023707
Numbers with exactly 2 0's in their base 4 expansion.
2
16, 32, 48, 65, 66, 67, 68, 72, 76, 80, 96, 112, 129, 130, 131, 132, 136, 140, 144, 160, 176, 193, 194, 195, 196, 200, 204, 208, 224, 240, 261, 262, 263, 265, 266, 267, 269, 270, 271, 273, 274, 275, 276, 280, 284, 289, 290, 291
OFFSET
1,1
LINKS
MATHEMATICA
Select[ Range[ 320 ], (Count[ IntegerDigits[ #, 4 ], 0 ]==2)& ]
CROSSREFS
Sequence in context: A044841 A033013 A043334 * A044442 A082294 A048946
KEYWORD
nonn,base,easy
STATUS
approved