229252

Appears in sequences

• Number of self-avoiding walks of length n from origin in strip Z X {0,1}.at n=23A038577
• a(n) = if n mod 2 = 0 then 8*F(n)-n otherwise 8*F(n)-4, where F() = Fibonacci numbers A000045.at n=23A110935
• Number of squares added at the n-th generation of a symmetric (with 45-degree angles), non-overlapping Pythagoras tree.at n=29A276677
• Number of length-n binary words having no palindromes of length > 5 as contiguous subwords.at n=31A329824