login
A045073
Numbers whose base-4 representation contains exactly two 0's and two 3's.
0
195, 204, 240, 271, 307, 316, 451, 460, 496, 527, 563, 572, 707, 716, 752, 775, 779, 781, 782, 787, 796, 803, 812, 817, 818, 820, 824, 835, 844, 880, 899, 908, 944, 961, 962, 964, 968, 976, 992, 1055, 1071, 1079, 1083, 1085
OFFSET
1,1
MATHEMATICA
Select[Range[1200], DigitCount[#, 4, 0]== DigitCount[#, 4, 3]==2&] (* Harvey P. Dale, Mar 13 2011 *)
CROSSREFS
Cf. A007090.
Sequence in context: A333875 A183583 A296893 * A204811 A234814 A154938
KEYWORD
nonn,base
STATUS
approved