244965

Appears in sequences

• Number of binary strings of length n with no substrings equal to 0001, 0011, or 1010.at n=26A164457
• Numbers k such that phi(k) = phi(k+2) - phi(k+1).at n=34A229552
• Length of n-th iterate of the mapping 00->001, 1->10, as in A284932.at n=26A286938
• Numbers n such that uphi(n) = uphi(n+2) - uphi(n+1), where uphi is the unitary totient function (A047994).at n=5A298762