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A126626 A floretion-generated sequence based on the iterative procedure defined in the link given. 2
1, 0, -1, 2, -3, 2, -1, 2, 1, 0, 3, -2, 5, -4, 3, -4, 1, -4, -1, -2, -3, 0, -5, 2, -7, 4, -9, 4, -7, 4, -5, 4, -3, 4, -1, 4, 1, 2, 3, 0, 5, -2, 7, -4, 9, -6, 11, -8, 13, -8, 11, -8, 9, -8, 7, -8, 5, -8, 3, -8, 1, -8, -1, -6, -3, -4, -5, -2, -7, 0, -9, 2, -11, 4, -13, 6, -15, 8, -17, 10, -19, 12, -17, 12, -15, 12, -13, 12, -11, 12, -9, 12, -7, 12 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

COMMENTS

Changing Step 4 in this sequence results in A117154 (see link). Plotting against A125141 returns an "elliptic spiral". As music (example settings): Compute pitch by scaling: 11-66, perform division operation. Compute duration by scaling: 0-2, perform division operation

LINKS

Creighton Dement, Table of n, a(n) for n = 1..5000

Creighton Dement, Notes on A126626 and A117154

FORMULA

This sequence is calculated by noting the coefficient of the unit basis vector of the floretion Y after each iteration (see link for further details). Note: this basis vector may also be represented as the unit 4 X 4 matrix.

CROSSREFS

Cf. A125141, A117154, A108618.

Sequence in context: A154556 A260228 A277914 * A137927 A084311 A026490

Adjacent sequences:  A126623 A126624 A126625 * A126627 A126628 A126629

KEYWORD

sign,hear,look

AUTHOR

Creighton Dement, Nov 21 2006

STATUS

approved

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Last modified June 24 07:19 EDT 2017. Contains 288697 sequences.