A164233 Number of binary strings of length n with equal numbers of 00011 and 11000 substrings.

1, 2, 4, 8, 16, 30, 56, 106, 204, 396, 768, 1488, 2886, 5610, 10926, 21306, 41580, 81204, 158712, 310444, 607672, 1190240, 2332688, 4574284, 8974808, 17617864, 34601670, 67990286, 133657768, 262864296, 517192398, 1018003230, 2004547212, 3948639264

Offset

0,2

Links

R. H. Hardin, Table of n, a(n) for n=0..500

Crossrefs

Sequence in context: A164244 A164194 A164197 * A164249 A164216 A164257

Adjacent sequences: A164230 A164231 A164232 * A164234 A164235 A164236

Keyword

nonn

Author

R. H. Hardin, Aug 11 2009

Status

approved