27066

Appears in sequences

• Integers n > 10563 such that the 'Reverse and Add!' trajectory of n joins the trajectory of 10563.at n=23A063064
• Values of m such that N=(am+1)(bm+1)(cm+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,27.at n=11A064250
• a(1) = 1, otherwise a(n) = floor(Pi^(n+1)/(Pi^2 + 1)).at n=10A090426
• a(n) = A051717(3n) + A051717(3n+1) + A051717(3n+2).at n=13A153087