A236916 The first "octad" is 0, 1, 2, 2, 2, 2, 3, 3; thereafter add 4 to get the next octad.

0, 1, 2, 2, 2, 2, 3, 3, 4, 5, 6, 6, 6, 6, 7, 7, 8, 9, 10, 10, 10, 10, 11, 11, 12, 13, 14, 14, 14, 14, 15, 15, 16, 17, 18, 18, 18, 18, 19, 19, 20, 21, 22, 22, 22, 22, 23, 23, 24, 25, 26, 26, 26, 26, 27, 27, 28, 29, 30, 30, 30, 30, 31, 31, 32, 33, 34, 34, 34, 34, 35, 35, 36, 37, 38, 38, 38, 38, 39, 39, 40, 41, 42, 42

Offset

0,3

Links

Table of n, a(n) for n=0..83.

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

Formula

G.f.: (x+x^2+x^6+x^8)/((1-x)*(1-x^8)). - Robert Israel, Jun 09 2020

Mathematica

Flatten[NestList[4+#&, {0, 1, 2, 2, 2, 2, 3, 3}, 10]] (* Harvey P. Dale, Oct 19 2015 *)

Crossrefs

Cf. A236680. A034583 is a very similar sequence.

Sequence in context: A103263 A173777 A140436 * A029083 A249040 A153683

Adjacent sequences: A236913 A236914 A236915 * A236917 A236918 A236919

Keyword

nonn

Author

N. J. A. Sloane, Feb 01 2014

Status

approved