A281092 Position of the first occurrence of n in the decimal expansion of e.

13, 2, 0, 17, 10, 11, 20, 1, 3, 12, 195, 200, 370, 27, 223, 201, 94, 88, 2, 108, 111, 87, 252, 16, 33, 92, 30, 0, 4, 131, 71, 189, 110, 142, 143, 17, 19, 270, 85, 106, 66, 124, 97, 134, 239, 10, 103, 25, 228, 34, 235, 93, 15, 18, 76, 301, 153, 38, 325, 11, 20, 242, 32

Offset

0,1

Comments

The 2 before the decimal point is counted as position 0.

This differs from A078197(n) at n = 2, 27, 271, 2718, ... .

Links

Table of n, a(n) for n=0..62.

Mathematica

With[{ed=RealDigits[E, 10, 500][[1]]}, Flatten[Table[SequencePosition[ ed, IntegerDigits[n], 1][[All, 1]], {n, 0, 65}]]]-1 (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Oct 06 2017 *)

Crossrefs

Cf. A001113, A051238, A078197, A088576, A176341.

Sequence in context: A120392 A133371 A223515 * A010223 A010222 A086266

Adjacent sequences: A281089 A281090 A281091 * A281093 A281094 A281095

Keyword

base,nonn

Author

Bobby Jacobs, Jan 21 2017

Status

approved