A226627 Irregular array read by rows. a(n) is the smallest starting value of a T_k trajectory that includes A226623(n), where T_k is the Collatz-like 3x-k function associated with A226623(n).

1, 5, 17, 19, 33, 73, 51, 2263, 2359, 2451, 1671, 2463, 1719, 2367, 4819, 89, 85, 63, 65, 685, 397, 1165, 293, 507, 369, 449, 769, 147, 227, 251, 247, 1085, 777, 7471, 7299, 11811, 5379, 8115, 267, 1355, 1367, 1043, 587, 779, 2123, 827, 2219, 843, 1611, 1707

Offset: 1

Author

Geoffrey H. Morley, Jun 13 2013

Keywords

• nonn
• tabf

Examples

			The irregular array starts:
(k=1)  1, 5, 17;
(k=11) 19;
(k=17) 33, 73;
(k=19) 51;
a(5)=33 is the smallest starting value for a 3x-17 trajectory that includes A226623(5)=65. The trajectory is {33,41,53,71,98,49,65,...}.
		

Links

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

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 of which A226624(n) is the largest.

Cf. A226611.