69427

Properties

Appears in sequences

• Decimal part of cube root of a(n) starts with 1: first term of runs.at n=39A034127
• Numbers k such that 41^k - 40^k is prime.at n=10A062607
• Primes of the form 1 + prime(k) + (prime(k+1))^2, any k.at n=12A165613
• Number of nonnegative integer arrays of length n+2*7-2 with new values introduced in order 0 upwards and every value appearing only in runs of at least 7.at n=35A211699
• Odd k for which abs(2^m - k) is nonprime for all m < k.at n=23A263865
• a(0) = a(1) = a(2) = 1; for n > 2, a(n) = (a(n-1)^2+a(n-2)^2+a(n-1)+a(n-2))/a(n-3).at n=6A276122
• Prime numbersat n=6891