524706

Appears in sequences

• Values of m such that N=(am+1)(bm+1)(cm+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,43.at n=21A064258
• Numbers k such that 11*10^k - 1 is prime.at n=23A111391
• a(n) = 2^n + n*(n+3).at n=19A131951