48828124
domain: N
Appears in sequences
- a(n) = 5^n - 1.at n=11A024049
- a(n) = 4*a(n-1) + 5*a(n-2) for n > 1, with a(0) = 2 and a(1) = 4.at n=11A087404
- a(n) = 0^n + 5^n - 1.at n=11A103455
- Numbers of the form i*5^j-1 (i=1..4, j >= 0).at n=44A181287
- a(n) = n^11 - 1.at n=4A258812
- The "Fouriest" numbers: numbers that can be expressed as a string of 4's longer than the original number in some base.at n=18A349031