97768

Appears in sequences

• a(n) = least 2k such that p is the least prime in a Goldbach partition of 2k, where p = prime(n).at n=42A025017
• 'Reverse and Add!' trajectory of 1997.at n=3A063054
• Records in A025017.at n=17A133427
• Numbers n such that n^32+1 and (n+2)^32+1 are both prime.at n=30A217992
• Numbers k having at least two complementary pairs of divisors (q, p) and (p', q') such that k = p*q = p'*q' where the decimal digits of p' are the 9's complement of the decimal digits of p and the decimal digits of q' are the 9's complement of the decimal digits of q.at n=18A226587
• Numbers k such that Sum_{i=1..k} i^tau(i) == 0 (mod k), where tau(i) = A000005(i), the number of divisors of i.at n=12A229095
• Number of length 5 0..n arrays least squares fitting to a zero slope straight line, with a single point taken as having zero slope.at n=20A245135