53305

Appears in sequences

• Number of self-inverse permutations p on [n] with displacement of elements restricted by 3: |p(i)-i| <= 3.at n=15A239075
• Main diagonal of A332374.at n=20A332375
• First term is 1; thereafter, if u and v are consecutive terms, with decimal expansions u = bc...ef, v = hi...jk, then v-u has decimal expansion efhi, formed by concatenating the last two digits of u and the first two digits of v. If there is a choice for v, pick the smallest.at n=13A367363
• Expansion of 1 / ( (1 - x)*(1 + 5*x)*(1 - 25*x) )^(1/3).at n=4A370782