526337

Appears in sequences

• Numerators of continued fraction convergents to sqrt(257).at n=3A041480
• a(n) = 2048n^2 + 128n + 1.at n=15A157476
• Let a(1) = 1. Given a(1), ..., a(2^t), find the least k such that a(1) + 2^k, a(2) + 2^k, ..., a(2^t) + 2^k are all composite and a(1) + 2^k > a(2^t). Then a(2^t+i) = a(i) + 2^k for all 1 <= i <= 2^t.at n=10A173281