141421356

Appears in sequences

• Decimal expansion of sqrt(2) truncated to n places.at n=8A011547
• Decimal expansion of sqrt(2) rounded to n places.at n=8A011548
• Index of smallest triangular number with n digits.at n=16A068092
• a(n) = the largest integer whose square has n digits and first digit 1.at n=16A083377
• Number of triangular numbers <= 10^n.at n=16A236043