OFFSET
1,2
COMMENTS
LINKS
Robert Israel, Table of n, a(n) for n = 1..10000
EXAMPLE
Base-3 digits of 95: 1,0,1,1,2, so that 95 is in the sequence.
MAPLE
filter:= proc(n) local L;
L:= convert(n, base, 3);
member(0, L[2..-1]-L[1..-2])
end proc:
filter(1):= true: filter(2):= true:
select(filter, [$1..100]); # Robert Israel, Apr 12 2018
MATHEMATICA
a[n_, b_] := Sign[Differences[IntegerDigits[n, b]]]; z = 300;
b = 3; t = Table[a[n, b], {n, 1, 10*z}];
u = Select[Range[z], ! MemberQ[t[[#]], 0] && First[t[[#]]] == 1 &] (* A297124 *)
v = Select[Range[z], ! MemberQ[t[[#]], 0] && First[t[[#]]] == -1 &] (* A297125 *)
Complement[Range[z], Union[u, v]] (* A297126 *)
CROSSREFS
KEYWORD
nonn,easy,base
AUTHOR
Clark Kimberling, Apr 10 2018
EXTENSIONS
3 removed by Robert Israel, Apr 12 2018
STATUS
approved