A164263 Number of binary strings of length n with equal numbers of 01010 and 10101 substrings

1, 2, 4, 8, 16, 30, 60, 116, 228, 444, 870, 1698, 3324, 6498, 12720, 24892, 48748, 95472, 187072, 366632, 718814, 1409666, 2765414, 5426584, 10651904, 20914746, 41077750, 80702042, 158594096, 311753402, 612994372, 1205648564, 2371934836, 4667676104

Offset

0,2

Links

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

Crossrefs

Sequence in context: A140410 A213368 A216212 * A283836 A244825 A220843

Adjacent sequences: A164260 A164261 A164262 * A164264 A164265 A164266

Keyword

nonn

Author

R. H. Hardin Aug 11 2009

Status

approved