42223

Properties

Appears in sequences

• Second term of weak prime sextet: p(m)-p(m-1) < p(m+1)-p(m) < p(m+2)-p(m+1) < p(m+3)-p(m+2) < p(m+4)-p(m+3).at n=14A054829
• Largest prime of the set of five consecutive primes whose sum of digits is a set of five distinct primes.at n=7A106815
• Primes such that the outer 2 digits are n and n-1 and all inner digits are 2, where 0 < n < 9.at n=2A108830
• Numerators of n-th approximation of factorial (also called harmonic) expansion of Pi.at n=7A131445
• Numerators of n-th approximation of factorial (also called harmonic) expansion of Pi.at n=8A131445
• Prime numbers containing the string 222.at n=12A166580
• Number of strings of numbers x(i=1..6) in 0..n with sum i^2*x(i)^2 equal to n^2*36.at n=42A184244
• Primes having only {2, 3, 4} as digits.at n=27A199342
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 621", based on the 5-celled von Neumann neighborhood.at n=32A273268
• Prime numbers of the form A385986(1) + ... + A385986(k) for some k > 0.at n=40A385987
• Prime numbersat n=4415