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A158894 Sawtooth pattern of one, then two, then three, then four etc. consecutive odd numbers, starting each time at 3. 1
3, 3, 5, 3, 5, 7, 3, 5, 7, 9, 3, 5, 7, 9, 11, 3, 5, 7, 9, 11, 13, 3, 5, 7, 9, 11, 13, 15, 3, 5, 7, 9, 11, 13, 15, 17, 3, 5, 7, 9, 11, 13, 15, 17, 19, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 3, 5, 7, 9, 11, 13, 15, 17, 19 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Obtained from A158405 by deleting the 1's, or from A141620 by deleting the positive numbers and flipping all signs.

LINKS

Table of n, a(n) for n=1..75.

FORMULA

a(A000124(i))=3, i>=0. - R. J. Mathar, Apr 04 2009

MATHEMATICA

sp[n_]:=Module[{cl=Range[3, 51, 2], l={}}, Table[l=Join[l, Take[cl, i]], {i, n}]; l ]; sp[15] (* Harvey P. Dale, Oct 30 2011 *)

PROG

(PARI) forstep(m=3, 9, 2, forstep(n=3, m, 2, print1(n", "))) \\ Charles R Greathouse IV, Oct 30 2011

CROSSREFS

Sequence in context: A267518 A101772 A233793 * A131919 A185154 A204022

Adjacent sequences:  A158891 A158892 A158893 * A158895 A158896 A158897

KEYWORD

nonn,easy

AUTHOR

Paul Curtz, Mar 29 2009

EXTENSIONS

Edited by R. J. Mathar, Apr 04 2009

Corrected by Harvey P. Dale, Oct 30 2011

STATUS

approved

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Last modified June 23 12:08 EDT 2021. Contains 345401 sequences. (Running on oeis4.)