|
| |
|
|
A164483
|
|
Number of binary strings of length n with no substrings equal to 0001 0111 or 1010.
|
|
1
|
|
|
|
13, 20, 30, 44, 64, 92, 131, 186, 263, 370, 520, 730, 1022, 1430, 2001, 2796, 3905, 5456, 7618, 10632, 14844, 20720, 28911, 40350, 56315, 78574, 109644, 153014, 213498, 297898, 415709, 580048, 809333, 1129356, 1575846, 2198756, 3068088, 4281092
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
4,1
|
|
|
LINKS
|
R. H. Hardin, Table of n, a(n) for n=4..500
Index entries for linear recurrences with constant coefficients, signature (2,-1,2,-3,0,1).
|
|
|
FORMULA
|
G.f.: -x^4*(13-6*x+3*x^2-22*x^3+5*x^4+8*x^5) / ( (x^4+2*x^3-1)*(x-1)^2 ). - R. J. Mathar, Jan 19 2011
a(n) = 2*a(n-1)-a(n-2)+2*a(n-3)-3*a(n-4)+a(n-6). - Wesley Ivan Hurt, Apr 23 2021
|
|
|
CROSSREFS
|
Sequence in context: A058016 A096277 A164475 * A164468 A164489 A164464
Adjacent sequences: A164480 A164481 A164482 * A164484 A164485 A164486
|
|
|
KEYWORD
|
nonn
|
|
|
AUTHOR
|
R. H. Hardin Aug 14 2009
|
|
|
STATUS
|
approved
|
| |
|
|
