|
%I #15 Aug 03 2022 02:33:31
%S 1,11,101,111,1001,1011,1101,1111,10001,10011,10111,11001,11011,11101,
%T 11111,100001,100011,100111,101111,110001,110011,110111,111001,111011,
%U 111101,111111,1000001,1000011,1000111,1001111,1011111,1100001,1100011,1100111,1101111
%N Numbers from A193414 written in base 2.
%C For n > 1 the structure of digits represents a valley. The first digit is equal to the last digit (1). The first digits are in nonincreasing order. The last digits are in nondecreasing order. The numbers may have more than one 0 digit. Sequence is infinite.
%e Illustration using 67 = 1000011_2:
%e 1 . . . . 1 1
%e . 0 0 0 0 . .
%Y Cf. A193413 (Valley numbers written in base 10).
%K nonn,base
%O 1,2
%A _Jaroslav Krizek_, Jul 25 2011
|
