42677

Properties

Appears in sequences

• a(n) = A085956(3n+1).at n=31A086362
• Expansion of eta(q)/eta(q^5)^5 in powers of q.at n=50A109063
• Primes q such that p = (r+q+s-1)/2 is a balanced prime, where r, q, s are consecutive primes.at n=14A129190
• Primes p such that none of p-2, p-1, p+1, and p+2 is squarefree.at n=18A153215
• Primes having primitive roots 2, 3, 5, 7, 11, 13, and 17.at n=16A241048
• Number of (n+2)X(1+2) 0..3 arrays with every 3X3 subblock row and column sum not equal to 0 3 5 6 or 8 and every 3X3 diagonal and antidiagonal sum equal to 0 3 5 6 or 8.at n=8A252345
• T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock row and column sum not equal to 0 3 5 6 or 8 and every 3X3 diagonal and antidiagonal sum equal to 0 3 5 6 or 8.at n=36A252352
• Expansion of Product_{k>=1} (1-x^k)*(1+x^k)^4.at n=30A261998
• Numerator of best rational approximation x/y of log(k), y<=k, with k>1 given by A306975. The corresponding denominators are given in A306977.at n=17A306976
• Primes p such that p + 6, p + 12, p + 20, p + 26 and p + 32 are also primes.at n=16A384769
• Prime numbersat n=4460