login
A164257
Number of binary strings of length n with equal numbers of 01001 and 01010 substrings
1
1, 2, 4, 8, 16, 30, 56, 107, 207, 399, 762, 1457, 2802, 5403, 10410, 20038, 38622, 74591, 144216, 278933, 539779, 1045632, 2027743, 3935541, 7643432, 14855692, 28897420, 56257055, 109600276, 213671230, 416853878, 813817355, 1589880704, 3108007721
OFFSET
0,2
LINKS
CROSSREFS
Sequence in context: A164233 A164249 A164216 * A164256 A164240 A164214
KEYWORD
nonn
AUTHOR
R. H. Hardin Aug 11 2009
STATUS
approved