73211
domain: N
Appears in sequences
- A014486-index of the "Moose trees".at n=3A080975
- a(n) = arrange digits of concatenation of divisors of n (A037278, A176558) in decreasing order (in base 10).at n=20A243360
- Number of (n+2) X (4+2) 0..3 arrays with every consecutive three elements in every row and column not having exactly two distinct values, and in every diagonal and antidiagonal having exactly two distinct values, and new values 0 upwards introduced in row major order.at n=24A253021
- Consider a number x. Take the sum of its digits. Repeat the process deleting the first addendum and adding the previous sum. The sequence lists the numbers that after some iterations reach the arithmetic derivative of x.at n=31A269312