combinatorics: binary string
42047
How to calculate no. of binary strings containg substring “00”?
104351
Unique random string generation
26619
Permutations of word 'mathematics'
124371
String to Binary in C#
35515
Find the number of $(m+n)$ digit binary sequences with $m$ $0$'s and $n$ $1$'s such that no two $1$'s are adjacent
19250
Find a recurrence relation for the number of $n$-digit binary sequences with no pair of consecutive $1$s
107027
Number of combinations and permutations of letters
142477
Closed-form expression for the number of $k$-permutations of length $n$. Duplicates allowed!
65307
Simple combination/probability question based on string-length and possible-characters
58103
number of permutations in which no two consecutive numbers are adjacent
130614
Permutations on word $MISSISSIPPI$.
101751
The number of words that can be made by permuting the letters of _MATHEMATICS_ is
122048
why is the set of all binary sequences not countable?
120744
How many $n\times m$ binary matrices are there, up to row and column permutations?
95143
What follows next in the sequence "unary, binary, ternary..."?
23322
Combinatorics Inclusion - Exclusion Principle
35648
How many permutations of the set n={1,2,3,3,3,4,4,5} are possible without any consecutive identical elements?