42073

Properties

Appears in sequences

• Half-quartan primes: primes of the form p = (x^4 + y^4)/2.at n=17A002646
• Primes p of the form : p+p^2+p^3-+8=prime.at n=35A154823
• Exponents m such that the decimal expansion of 3^m exhibits its first zero from the right later than any previous exponent.at n=21A239008
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 589", based on the 5-celled von Neumann neighborhood.at n=34A273113
• Number of 2 X 2 matrices with all elements in {0,...,n} and prime determinant.at n=28A281315
• Primes p such that the concatenation of p^3, p^2, p and 1 is prime.at n=46A323428
• a(n) is the least prime p such that a(n-1) + p is divisible by a(n-2); a(0)=3, a(1)=5.at n=12A338974
• Prime numbersat n=4400