login
A373053
Decimal expansion of sqrt(26)/2.
0
2, 5, 4, 9, 5, 0, 9, 7, 5, 6, 7, 9, 6, 3, 9, 2, 4, 1, 5, 0, 1, 4, 1, 1, 2, 0, 5, 4, 5, 1, 1, 3, 9, 0, 9, 9, 4, 7, 8, 1, 8, 8, 5, 4, 7, 3, 0, 4, 9, 7, 9, 8, 2, 0, 3, 7, 9, 2, 4, 8, 5, 4, 0, 2, 2, 1, 2, 9, 6, 6, 8, 1, 6, 0, 3, 1, 1, 1, 2, 0, 9, 7, 7, 9, 4, 1, 7
OFFSET
1,1
COMMENTS
sqrt(26)/2 is the area of a triangle of sides sqrt(5), sqrt(6) and sqrt(7), which is the smallest triangle whose sides are of the form sqrt(k), sqrt(k + 1) and sqrt(k + 2) and are all irrational numbers, where k is a positive integer.
FORMULA
Equals sqrt(13/2).
EXAMPLE
2.54950975679639241501411...
MATHEMATICA
RealDigits[Sqrt[26]/2, 10, 200][[1]]
CROSSREFS
Cf. A010481.
Sequence in context: A316905 A214533 A065221 * A283419 A114752 A204923
KEYWORD
nonn,cons,easy
AUTHOR
Gonzalo Martínez, May 20 2024
STATUS
approved