213096

Appears in sequences

• a(n) = n^4 - 6*n^3 + 12*n^2 - 4*n + 1.at n=23A027382
• Numbers m such that N = (am+1)(bm+1)(cm+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,55.at n=22A065696