1188111
domain: N
Appears in sequences
- Smallest triangular number containing exactly n 1's.at n=4A036518
- Triangular numbers that contain exactly 2 different digits.at n=30A062691
- z-value of the solution (x,y,z) to 3/(2n+1) = 1/x + 1/y + 1/z satisfying 0 < x < y < z, odd x, y, z and having the largest z-value. The x and y components are in A075260 and A075261.at n=31A075262
- Triangular numbers whose representation is made of nontrivial runs of identical digits.at n=6A116055
- Triangular numbers composed of digits {0,1,8}.at n=7A119045
- Triangular numbers composed of digits {1,2,8}.at n=11A119107
- Triangular numbers composed of digits {1,3,8}.at n=3A119119
- Triangular numbers composed of digits {1,4,8}.at n=2A119128
- Triangular numbers composed of digits {1,5,8}.at n=7A119136
- Triangular numbers composed of digits {1,6,8}.at n=6A119142
- Triangular numbers composed of digits {1,7,8}.at n=7A119146
- Triangular numbers composed of digits {1,8,9}.at n=8A119150
- Triangular numbers which are sums of 5 consecutive primes.at n=26A173421
- Triangular numbers having only 1 or 2 different digits in base 10.at n=37A213516