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A045101
Numbers whose base-4 representation contains exactly three 1's and one 2.
0
86, 89, 101, 149, 278, 281, 293, 326, 329, 338, 344, 347, 350, 353, 356, 359, 365, 374, 377, 389, 401, 404, 407, 413, 437, 470, 473, 485, 533, 581, 593, 596, 599, 605, 629, 725, 854, 857, 869, 917, 1046, 1049, 1061, 1094, 1097
OFFSET
1,1
CROSSREFS
Cf. A007090.
Sequence in context: A020665 A259084 A058907 * A020215 A094776 A095595
KEYWORD
nonn,base
STATUS
approved