A019559 Period 5: repeat [4, 4, 6, 6, 6].

4, 4, 6, 6, 6, 4, 4, 6, 6, 6, 4, 4, 6, 6, 6, 4, 4, 6, 6, 6, 4, 4, 6, 6, 6, 4, 4, 6, 6, 6, 4, 4, 6, 6, 6, 4, 4, 6, 6, 6, 4, 4, 6, 6, 6, 4, 4, 6, 6, 6, 4, 4, 6, 6, 6, 4, 4, 6, 6, 6, 4, 4, 6, 6, 6, 4, 4, 6, 6, 6, 4, 4, 6, 6, 6, 4, 4, 6, 6, 6, 4, 4, 6, 6, 6, 4, 4, 6, 6, 6

Offset

0,1

Comments

Previous name was: Distance between vowels when alphabet is written around a daisy wheel.

Links

Table of n, a(n) for n=0..89.

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

Formula

a(n) = 4*floor((n+5)/5)+2*floor((n+3)/5)-6*floor(n/5). - Aaron J Grech, Sep 28 2024

Mathematica

PadRight[{}, 100, {4, 4, 6, 6, 6}] (* Paolo Xausa, May 23 2026 *)

Crossrefs

Sequence in context: A225134 A121064 A213342 * A365198 A274636 A198697

Adjacent sequences: A019556 A019557 A019558 * A019560 A019561 A019562

Keyword

nonn,easy,less

Author

David Neary (nearyd(AT)teltec.dcu.ie)

Status

approved