id:A023716 - OEIS Search Results

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Numbers with exactly 3 2's in base 4 expansion.

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42, 106, 138, 154, 162, 166, 168, 169, 171, 174, 186, 234, 298, 362, 394, 410, 418, 422, 424, 425, 427, 430, 442, 490, 522, 538, 546, 550, 552, 553, 555, 558, 570, 586, 602, 610, 614, 616, 617, 619, 622, 634, 642, 646, 648 (list; graph; listen)

	OFFSET	`1,1`
	MATHEMATICA	`Select[ Range[ 672 ], (Count[ IntegerDigits[ #, 4 ], 2 ]==3)& ]`
	CROSSREFS	`Sequence in context: A063329 A039470 A075296 this_sequence A045148 A045040 A044229` `Adjacent sequences: A023713 A023714 A023715 this_sequence A023717 A023718 A023719`
	KEYWORD	`nonn,base,easy`
	AUTHOR	`Olivier Gerard (olivier.gerard(AT)gmail.com)`

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Last modified March 20 01:21 EDT 2010. Contains 173643 sequences.

AT&T Labs Research