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A045112
Numbers whose base-4 representation contains no 1's and exactly three 3's.
0
63, 191, 207, 239, 243, 251, 252, 254, 575, 703, 719, 751, 755, 763, 764, 766, 783, 815, 819, 827, 828, 830, 911, 943, 947, 955, 956, 958, 963, 971, 972, 974, 995, 1003, 1004, 1006, 1008, 1010, 1016, 1018, 2111, 2239, 2255, 2287
OFFSET
1,1
CROSSREFS
Cf. A007090.
Sequence in context: A008895 A359563 A008874 * A255568 A143033 A156527
KEYWORD
nonn,base
STATUS
approved