A164232 Number of binary strings of length n with equal numbers of 00011 and 01101 substrings.

1, 2, 4, 8, 16, 30, 56, 106, 201, 380, 719, 1367, 2604, 4968, 9495, 18192, 34922, 67157, 129371, 249660, 482573, 934191, 1811073, 3515899, 6834410, 13301367, 25917482, 50554817, 98713770, 192935409, 377433725, 738993990, 1448073668, 2839679509, 5572597314

Offset

0,2

Links

Alois P. Heinz, Table of n, a(n) for n = 0..2000 (first 501 terms from R. H. Hardin)

Crossrefs

Sequence in context: A164195 A164196 A164217 * A164241 A164251 A164215

Adjacent sequences: A164229 A164230 A164231 * A164233 A164234 A164235

Keyword

nonn,easy

Author

R. H. Hardin, Aug 11 2009

Status

approved