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A043057
a(n)=(s(n)+2)/6, where s(n)=n-th base 6 palindrome that starts with 4.
0
1, 5, 25, 26, 27, 28, 29, 30, 145, 152, 159, 166, 173, 180, 865, 871, 877, 883, 889, 895, 902, 908, 914, 920, 926, 932, 939, 945, 951, 957, 963, 969, 976, 982, 988, 994, 1000, 1006, 1013, 1019, 1025, 1031, 1037, 1043, 1050, 1056
OFFSET
1,2
CROSSREFS
Sequence in context: A124398 A121003 A121007 * A137112 A037410 A070381
KEYWORD
nonn,base
STATUS
approved