login
A045117
Numbers whose base-4 representation contains exactly one 1 and three 3's.
0
127, 223, 247, 253, 319, 447, 463, 495, 499, 507, 508, 510, 639, 735, 759, 765, 799, 823, 829, 847, 879, 883, 891, 892, 894, 927, 951, 957, 967, 973, 979, 987, 988, 990, 999, 1005, 1009, 1012, 1014, 1017, 1087, 1215, 1231
OFFSET
1,1
CROSSREFS
Cf. A007090.
Sequence in context: A325078 A276261 A343319 * A178700 A142466 A268860
KEYWORD
nonn,base
STATUS
approved