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A226620 Irregular array read by rows in which a(n) is the number of odd elements in each primitive '3x+k' cycle associated with A226619(n). 3
1, 0, 1, 2, 1, 3, 2, 1, 4, 3, 2, 1, 5, 4, 2, 3, 2, 1, 6, 5, 2, 4, 3, 2, 1, 7, 6, 5, 4, 4, 4, 3, 2, 1, 8, 7, 6, 6, 3, 5, 4, 3, 2, 1, 9, 8, 7, 8, 6, 5, 2, 2, 6, 5, 4, 3, 2, 1, 10, 9, 8, 7, 7, 5, 3, 5, 4, 5, 6, 5, 4, 3, 2, 1, 11, 10, 9, 8, 9, 8, 8, 8, 8, 4, 4, 7 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

COMMENTS

The terms in row n are associated with cycles of length n (see A226619).

LINKS

Geoffrey H. Morley, Rows 1..26 of array, flattened

EXAMPLE

The irregular array starts:

1, 0;

1;

2, 1;

3, 2, 1;

4, 3, 2, 1;

5, 4, 2, 3, 2, 1; ...

CROSSREFS

Cf. A226621.

Sequence in context: A194856 A278703 A088643 * A194877 A102482 A194908

Adjacent sequences:  A226617 A226618 A226619 * A226621 A226622 A226623

KEYWORD

nonn,tabf

AUTHOR

Geoffrey H. Morley, Jul 02 2013

STATUS

approved

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Last modified October 18 23:44 EDT 2021. Contains 348071 sequences. (Running on oeis4.)