172236

Appears in sequences

• Number of 2 X n 0..2 arrays with antidiagonals unimodal and rows and diagonals nondecreasing.at n=34A224000
• Number of binary strings of length 2n having exactly 1 factorization as a concatenation of one or more even-length palindromes.at n=11A241208
• Least fundamental discriminant D > 1 such that the first n primes p have (D/p) >= 0.at n=14A241482