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A045145
Numbers whose base-4 representation contains exactly two 2's and two 3's.
0
175, 187, 190, 235, 238, 250, 431, 443, 446, 491, 494, 506, 559, 571, 574, 623, 635, 638, 655, 671, 691, 695, 700, 701, 715, 718, 731, 734, 739, 743, 748, 749, 754, 758, 760, 761, 811, 814, 826, 875, 878, 890, 907, 910, 923
OFFSET
1,1
CROSSREFS
Cf. A007090.
Sequence in context: A186218 A245035 A102538 * A351720 A015806 A369954
KEYWORD
nonn,base
STATUS
approved