70950

Appears in sequences

• Numbers k such that 57*2^k + 1 is prime.at n=32A002274
• Number of 5-bead necklaces labeled with numbers -n..n allowing reversal, with sum zero and avoiding the patterns z z+1 z+2 and z z-1 z-2.at n=15A209486
• Practical numbers m with m-1 and m+1 both prime, and prime(m)-1 and prime(m)+1 both practical.at n=13A257922