69749

Appears in sequences

• Denominators of continued fraction convergents to sqrt(706).at n=9A042359
• Counterexamples to the conjecture that an even, prime-indexed triangular plus 1 equals a prime or that an odd, prime-indexed triangular minus 2 equals a prime.at n=31A097785
• Number of arrangements of 5 numbers x(i) in -n..n with the sum of x(i)*x(i+1) equal to zero.at n=9A188360
• Numbers k such that 3^k + k - 1 is a prime.at n=10A300010
• Numbers k for which A276085(k) is a multiple of 3125, where A276085 is fully additive with a(p) = p#/p.at n=24A377878