216180

Appears in sequences

• Numbers n that raised to the powers from 1 to k (with k>=1) are multiple of the sum of their digits (n raised to k+1 must not be a multiple). Case k=12.at n=33A135197
• Averages of two consecutive odd cubes; a(n) = (n^3 + (n+2)^3)/2.at n=29A173962
• 7*x - 1 Collatz-type sequence starting with a(0) = 11.at n=39A287330