82530

Appears in sequences

• First row of spectral array W(sqrt(3)).at n=26A022159
• a(n) is a non-palindromic composite located between twin primes whose reverse, which is less than it, is also located between twin primes.at n=32A103741
• Numerator of Euler(n, 9/23).at n=4A156956
• Even numbers k such that 6k+1, 12k+1, 18k+1, 36k+1 and 72k+1 are all primes.at n=20A206349
• Numbers m such that 6m+1, 12m+1, 18m+1, 36m+1 and 72m+1 are all prime.at n=33A257035