72652
domain: N
Appears in sequences
- Number of (n+2)X(n+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00001001.at n=5A260286
- Number of (n+2)X(6+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00001001.at n=5A260292
- The number of gaps in the set of positive integers which need at most n steps of the Collatz iteration to reach 1.at n=44A391769