67477

Properties

Appears in sequences

• Primes in A103375.at n=20A103385
• Numbers whose square is the concatenation of two numbers k and k-2.at n=4A115442
• a(n) = a(n-1) + a(n-2) + a([2n/3]), where a(0) = 1, a(1) = 1, a(2) = 1.at n=21A298342
• Number of polyominoes with 2n cells and exactly one line of reflection symmetry, where that one line is parallel to the grid and passes through the corner of at least one square.at n=10A349329
• Primes p such that p + 4, p + 12 and p + 16 are also primes.at n=28A384298
• Primes having only {4, 6, 7} as digits.at n=18A385794
• Primes having only {0, 4, 6, 7} as digits.at n=33A386072
• Prime numbersat n=6721