53233

Properties

Appears in sequences

• Numbers k such that 273*2^k + 1 is prime.at n=43A053353
• Prime-indexed primes (PIPs) whose digits are all primes.at n=16A087368
• Primes that are either single-digit primes or a concatenation of two earlier terms.at n=37A104179
• Primes from merging of 5 successive digits in decimal expansion of the Euler-Mascheroni Constant.at n=22A104939
• A proximate-prime polynomial sequence generated by 2*n^2 - 2*n + 53089.at n=8A155557
• Primes from merging of 5 successive digits in decimal expansion of Euler-Mascheroni constant.at n=24A198779
• Primes of the form 5*n^3-7.at n=3A200912
• Number of n X 2 0..4 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor.at n=3A203185
• Number of nX4 0..4 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor.at n=1A203187
• T(n,k)=Number of nXk 0..4 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor.at n=11A203191
• T(n,k)=Number of nXk 0..4 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor.at n=13A203191
• Primes having only {2, 3, 5} as digits.at n=32A214703
• a(n) = Sum_{k=0..floor(n/5)} binomial(n,5*k)*binomial(6*k,k)/(5*k+1).at n=16A226910
• a(0) = 0, and for n > 0, (a(n)) gives the indices n for which d(n) < d(k) for k < n, where d is the difference sequence of (cos k + sin k).at n=8A299640
• Prime numbersat n=5431