52267

Properties

Appears in sequences

• a(n) = a(n-1) + a(n-2) + a(n-3), with a(0) = 0, a(1) = 2, a(2) = 1.at n=19A020992
• Primes p of Erdos-Selfridge class 5+ with largest prime factor of p+1 not of class 4+.at n=6A129473
• Indices of records in A194591 restricted to prime indices.at n=12A194635
• Indices of records in A194591 when it is restricted to odd indices.at n=12A194639
• Primes of the form 3*m^2 - 5.at n=22A201717
• Primes in the tribonacci-like sequence, A020992.at n=4A232498
• Number of nX3 0..1 arrays with every element equal to 0, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.at n=19A298584
• Array read by downward antidiagonals: A(n,k) = (k+1)^2*A(n-1,k) + A(n-1,k+1) with A(0,k) = 1, n >= 0, k >= 0.at n=39A369527
• Primes having only {2, 5, 6, 7} as digits.at n=43A386160
• Prime numbersat n=5344