13992265

Appears in sequences

• Carmichael numbers equal to the product of 5 primes.at n=5A112428
• Pseudoprimes (base-2) equal to the product of 5 primes not necessarily distinct.at n=25A112443
• Carmichael numbers divisible by 7.at n=29A182208
• Carmichael numbers of the form (6*k + 1)*(12*k + 1)*(18*k + 1), where only one of the three numbers 6*k + 1, 12*k + 1, 18*k + 1 is prime.at n=0A242981
• Carmichael numbers that are the average of two consecutive primes.at n=9A265669
• Numbers n > 2 such that A258409(n)*A002322(n) divides n-1.at n=22A284671
• Carmichael numbers ending in 5.at n=17A355305
• a(n) = (6*n + 1)*(12*n + 1)*(18*n + 1).at n=22A382809