login
A043587
Numbers whose base-3 representation has exactly 7 runs.
0
820, 821, 825, 826, 829, 830, 831, 833, 867, 869, 870, 871, 874, 875, 879, 880, 901, 902, 906, 907, 910, 911, 912, 914, 921, 923, 924, 925, 937, 938, 939, 941, 1245, 1247, 1248, 1249, 1261, 1262, 1263, 1265, 1272, 1274, 1275
OFFSET
1,1
MATHEMATICA
Select[Range[1300], Length[Split[IntegerDigits[#, 3]]]==7&] (* Harvey P. Dale, Feb 23 2011 *)
CROSSREFS
Cf. A007089.
Sequence in context: A229409 A015308 A156414 * A043791 A043805 A043813
KEYWORD
nonn,base
STATUS
approved