141421356237
domain: N
Appears in sequences
- Decimal expansion of sqrt(2) truncated to n places.at n=11A011547
- Decimal expansion of sqrt(2) rounded to n places.at n=11A011548
- Index of smallest triangular number with n digits.at n=22A068092
- a(n) = the largest integer whose square has n digits and first digit 1.at n=22A083377
- Number of triangular numbers <= 10^n.at n=22A236043