28927

Properties

Appears in sequences

• Primes p whose period of reciprocal equals (p-1)/9.at n=19A056214
• Primes of the form n^2+number of divisors of n^2.at n=25A188665
• Let p_(3,1)(m) be the m-th prime == 1(mod 3). Then a(n) is the smallest p_(3,1)(m) such that the interval(p_(3,1)(m)*n, p_(3,1)(m+1)*n) contains exactly one prime == 1(mod 3).at n=29A210465
• Primes p of the form m^2 + 27.at n=24A227622
• Integers that reach the (47360, 29127) cycle described in A234534, after iterations of numerator(sigma(n)/n) = A017665(n).at n=1A249614
• Pierce Expansion of cot(1).at n=18A280094
• Decimal representation of the diagonal from the origin to the corner of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 581", based on the 5-celled von Neumann neighborhood.at n=14A289526
• Number of alternately co-strong integer partitions of n.at n=45A317256
• Primes of the form p^2 - p*q + q^2, where p and q are consecutive primes.at n=4A339698
• Prime numbersat n=3149