79899

Appears in sequences

• Numbers that require exactly 8 iterations to determine that they are happy or not (A007770 and A031177).at n=9A193996
• Least integer having a larger digital sum than the previous term and such that 10^(n-1) + a(n) is a prime.at n=19A199190
• Number of n X 2 0..1 arrays with each 1 horizontally or vertically adjacent to 1 or 3 1s.at n=13A295091