A081749 - OEIS

A081749

Continued fraction for e/5.

0, 1, 1, 5, 4, 2, 2, 2, 2, 2, 1, 1, 9, 1, 1, 3, 3, 2, 3, 3, 2, 1, 2, 2, 1, 2, 1, 2, 2, 1, 3, 9, 1, 3, 3, 3, 4, 3, 3, 4, 1, 2, 2, 1, 4, 1, 2, 2, 1, 5, 9, 1, 5, 3, 3, 6, 3, 3, 6, 1, 2, 2, 1, 6, 1, 2, 2, 1, 7, 9, 1, 7, 3, 3, 8, 3, 3, 8, 1, 2, 2, 1, 8, 1, 2, 2, 1, 9, 9, 1, 9, 3, 3, 10, 3, 3, 10, 1, 2, 2, 1, 10, 1, 2

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OFFSET

0,4

LINKS

Ray Chandler, Table of n, a(n) for n = 0..9999

Index entries for linear recurrences with constant coefficients, signature (0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-1).

FORMULA

First 19 terms: 0, 1, 1, 5, 4, 2, 2, 2, 2, 2, 1, 1, 9, 1, 1, 3, 3, 2, 3.

For k >= 1, a(19k)=a(19k+15)=a(19k+16)=a(19k+18)=3; a(19k+1)=a(19k+6)=2k; a(19k+2)=a(19k+5)=a(19k+7)=a(19k+10)=a(19k+13)=1; a(19k+3)=a(19k+4)=a(19k+8)= a(19k+9)=2; a(19k+11)=a(19k+14)=2k+1; a(19k+17)=2k+2.

MATHEMATICA

ContinuedFraction[E/5, 100] (* Paolo Xausa, Sep 21 2024 *)

PROG

(PARI) contfrac(exp(1)/5) \\ Michel Marcus, Dec 03 2013

CROSSREFS

Cf. A019762 (decimal expansion).

Cf. A003417 (e), A006083 (e/2), A006084 (e/3), A006085 (e/4).

Sequence in context: A090462 A375708 A246966 * A370969 A074825 A225063

Adjacent sequences: A081746 A081747 A081748 * A081750 A081751 A081752

KEYWORD

nonn,cofr,easy

AUTHOR

Benoit Cloitre, Apr 08 2003

EXTENSIONS

Offset changed by Andrew Howroyd, Jan 15 2026

STATUS

approved