519712

Appears in sequences

• Primitive weird numbers: weird numbers with no proper weird divisors.at n=19A002975
• Denominators of continued fraction convergents to sqrt(137).at n=17A041251
• Let p = n-th prime, take smallest solution (x,y) to the Pellian equation x^2 - p*y^2 = 1 with x and y >= 1; sequence gives value of y.at n=32A081234
• Let p = n-th prime of the form 4k+1, take the integer solution (x,y) to the Pellian equation x^2 - p*y^2 = 1 with the smallest y >= 1; sequence gives value of y.at n=14A082393
• Least primitive weird number with n prime divisors, counting multiplicity.at n=4A258375
• Primitive weird numbers of the form 2^k*p*q with k > 0 and where p < q are odd primes.at n=10A258882
• Least primitive weird number, pwn, (A002975) which is divisible by the n-th prime (A000040).at n=26A265727
• Least primitive weird number, pwn, (A002975) whose abundance is divisible by the n-th prime (A000040), or 0 if no such pwn exists.at n=7A265728