121411

Appears in sequences

• a(n) = A027113(n, n+2).at n=16A027114
• Smaller of consecutive values in A075407.at n=24A074888
• Squarefree numbers (A005117) with prime factors in a prime(k) + k progression.at n=13A232169
• Squarefree numbers (A005117) of form prime(k)*q where q = primes of the form prime(k) + k.at n=12A232170
• Number of intervals in the lattice of Motzkin paths of length n.at n=9A379034