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A226624 Irregular array read by rows. a(n) is the largest element in the primitive Collatz-like 3x-k cycle associated with A226623(n). 8
1, 7, 91, 29, 179, 143, 505, 17033, 16793, 15497, 31613, 19589, 25781, 15845, 12137, 2011, 311, 517, 103, 19031, 24623, 8339, 811, 2609, 7387, 2995, 18275, 601, 493, 421, 1577, 74611, 13699, 1793597, 275693, 177521, 226769, 144881 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Geoffrey H. Morley, Rows 1..280 of array, flattened

EXAMPLE

The irregular array starts:

(k=1)  1, 7, 91;

(k=11) 29;

(k=17) 179, 143;

(k=19) 505;

a(4)=29 is the largest element in the 3x-11 cycle {19,23,29,38} associated with A226623(4)=19.

CROSSREFS

Row n begins with a(A226628(n)) and has length A226629(n). k=A226630(n).

The cycle associated with a(n) has length A226625(n) and A226626(n) odd elements.

Cf. A226608, A226627, A226683, A226684, A226685.

Sequence in context: A243699 A007820 A306137 * A266236 A123694 A319978

Adjacent sequences:  A226621 A226622 A226623 * A226625 A226626 A226627

KEYWORD

nonn,tabf

AUTHOR

Geoffrey H. Morley, Jun 13 2013

STATUS

approved

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Last modified October 19 16:17 EDT 2019. Contains 328223 sequences. (Running on oeis4.)