A319424 Records in A175046 (but written in base 2).

11, 1100, 11000, 110011, 1100011, 11001100, 110001100, 110011000, 1100110011, 11000110011, 11001100011, 110011001100, 1100011001100, 1100110001100, 1100110011000, 11001100110011, 110001100110011, 110011000110011, 110011001100011, 1100110011001100, 11000110011001100, 11001100011001100, 11001100110001100, 11001100110011000, 110011001100110011, 1100011001100110011

Offset: 1

Author

N. J. A. Sloane, Sep 23 2018

Keywords

• nonn
• base

Comments

More terms than usual are given in order to display the pattern.

Conjecture. a(n) is either an alternating string of 11's and 00's, or exactly one of the 00's is replaced by 000.

Conjecture is true (see A319423). - Chai Wah Wu, Oct 04 2018

Links

• Chai Wah Wu, Table of n, a(n) for n = 1..10099
• N. J. A. Sloane, Transforms
• Chai Wah Wu, Record values in appending and prepending bitstrings to runs of binary digits, arXiv:1810.02293 [math.NT], 2018

Crossrefs

Cf. A175406, A319422, A319423.