33623

Properties

Appears in sequences

• Primes which are the sum of the first k odd primes for some k.at n=11A071151
• Primes which can be represented as the sum of a square and its reverse.at n=5A072383
• Primes of the form 8*k-1 such that 4*k-1 and 16*k-1 are also primes.at n=26A101792
• Sophie Germain primes for which the reversal is also a Sophie Germain prime.at n=33A118573
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 0, 1), (0, 1, -1), (1, 0, 0), (1, 1, 0)}.at n=8A150429
• a(n) = 20*n^2 + 3.at n=40A167573
• Smallest prime greater than n*(n+1)^2/2.at n=40A181956
• Primes of the form 5n^2 + 3.at n=16A201482
• Number of 2 X 2 matrices with all elements in {0,1,...,n} and determinant >=n.at n=16A210366
• Primes that are the sum of 51 consecutive primes.at n=25A215992
• Larger of pairs of emirps (A006567) whose difference with the (smaller) reversal is a triangular number (A000217).at n=25A217286
• Number of partitions p of n such that max(p)-min(p) = 8.at n=46A218571
• Primes whose base-7 representation also is the base-3 representation of a prime.at n=28A235470
• Primes p such that p - d and p + d are also primes, where d is the largest digit of p.at n=23A245877
• Primes having only {2, 3, 6} as digits.at n=24A260126
• Primes of the form 2^x + y (x >= 0 and 0 <= y < 2^x) such that all the numbers 2^(x+a) + (y-a) (0 < a <= y) are composite.at n=36A264866
• Safe primes p such that p + 24 is also a safe prime.at n=25A274381
• Sophie Germain primes p such that p+6 and p-6 are primes.at n=29A278869
• Partial sums of A299266.at n=35A299267
• Number of equivalence classes of binary words of length n for the set of subwords {010, 101}.at n=18A317783