A240885 Decimal expansion of the unique positive solution of Integral_{0..x} exp(-t^2/2) dt = 1.

1, 2, 7, 5, 5, 4, 7, 7, 3, 6, 4, 1, 7, 2, 1, 5, 3, 7, 8, 8, 0, 1, 3, 4, 3, 1, 9, 7, 4, 6, 7, 8, 5, 4, 7, 9, 0, 7, 3, 0, 7, 8, 1, 4, 3, 7, 4, 9, 4, 7, 2, 6, 1, 4, 3, 9, 4, 4, 8, 7, 3, 2, 6, 4, 6, 3, 1, 6, 4, 6, 9, 2, 5, 6, 4, 3, 0, 0, 8, 6, 4, 1, 6, 0, 4, 6, 2, 5, 2, 7, 5, 9, 5, 4, 2, 9, 3, 4, 5, 6

Offset

1,2

Links

Table of n, a(n) for n=1..100.

Steven Finch, Pattern-Avoiding Permutations [Internet archive]

Steven Finch, Pattern-Avoiding Permutations [Cached copy, with permission]

Formula

Solution to sqrt(Pi/2)*erf(x/sqrt(2)) = 1.

Example

1.2755477364172...

Mathematica

RealDigits[Sqrt[2]*InverseErf[Sqrt[2/Pi]], 10, 100] // First

Crossrefs

Cf. A052319, A071075, A111004, A200404, A263885.

Sequence in context: A334851 A021788 A019640 * A119929 A195070 A352619

Adjacent sequences: A240882 A240883 A240884 * A240886 A240887 A240888

Keyword

nonn,cons

Author

Jean-François Alcover, Apr 14 2014

Status

approved