66762

Appears in sequences

• First occurrence of just n semiprimes occurs between the a(n)-th prime and the next prime.at n=26A103669
• Numbers k such that difference between k-th prime and next prime is 100.at n=1A116496
• Smallest sets of 7 consecutive abundant numbers in arithmetic progression. The initial abundant number is listed.at n=30A228964
• a(n) is the least k such that there are exactly n primes between prime(k) + 1 and floor(prime(k + 1)^2/prime(k)) (inclusive) or 0 if no such k exists.at n=12A344582
• Positive numbers whose square starts and ends with exactly 44, and no 444.at n=25A348831