A397435 Decimal expansion of exp(2)/2.

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

Offset

1,1

Links

Paolo Xausa, Table of n, a(n) for n = 1..10000

Jerrad Hampton and Alireza Doostan, Compressive Sampling of Polynomial Chaos Expansions: Convergence Analysis and Sampling Strategies, arxiv:1408.4157 [math.PR], 2014.

Index entries for transcendental numbers.

Formula

Equals A062546 + 3.5.

Equals A072334/2.

Equals 1/A325905.

Example

3.6945280494653251136152137302875039...

Mathematica

First[RealDigits[Exp[2]/2, 10, 100]] (* Paolo Xausa, Jun 25 2026 *)

Prog

(SageMath)
seq = RealField(500)(exp(2)/2).str(base=10)
list = [int(i) for i in seq if i.isdigit()][:70]
print(list)
(PARI) exp(2)/2 \\ Charles R Greathouse IV, Jul 06 2026

Crossrefs

Cf. A001113, A072334, A092553, A325905.

Essentially the same as A062546.

Sequence in context: A271742 A195771 A086276 * A176322 A396328 A300714

Adjacent sequences: A397431 A397432 A397433 * A397437 A397438 A397439

Keyword

nonn,cons,changed

Author

Aitzaz Imtiaz, Jun 24 2026

Status

approved