333333333333
domain: N
Appears in sequences
- a(n) = 3*(10^n - 1)/9.at n=12A002277
- Palindromic quotients (k*(k+1)*(k+2)) / (k+(k+1)+(k+2)).at n=21A032790
- Fancy primitive repdigit polygonal numbers.at n=22A033704
- Fancy primitive repdigit polygonal numbers (with multiplicity).at n=24A033705
- Numbers m that divide the concatenation of m-1 and m+1.at n=25A069871
- a(n) = (10^(n-1)-1) * (n-10) / 9.at n=13A091691
- Integer part of the square root of n-th decimal repunit.at n=23A096483
- a(n) is the least positive integer in base 10 containing n threes that is divisible by n.at n=10A112895
- Conversion to octal of the binary expansion given by the first n terms of the period-3 sequence A011655 (repeat 0, 1, 1).at n=35A289006
- Repdigit numbers that are divisible by 7.at n=22A366596
- Repdigit numbers whose square does not contain the repeated digit.at n=23A385515