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URL: https://oeis.org/A045121

⇱ A045121 - OEIS

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A045121
Numbers whose base-4 representation contains exactly two 1's and two 3's.
0
95, 119, 125, 215, 221, 245, 287, 311, 317, 335, 367, 371, 379, 380, 382, 415, 439, 445, 455, 461, 467, 475, 476, 478, 487, 493, 497, 500, 502, 505, 607, 631, 637, 727, 733, 757, 791, 797, 821, 839, 845, 851, 859, 860, 862, 871
OFFSET
1,1
CROSSREFS
Cf. A007090.
Sequence in context: A331663 A046005 A339522 * A207374 A057874 A112135
KEYWORD
nonn,base
STATUS
approved