A248154 Row length of the irregular triangle A246646 (sieved modified Collatz table).

2, 5, 2, 8, 3, 2, 7, 2, 2, 5, 3, 2, 3, 60, 2, 2, 3, 2, 2, 3, 9, 2, 6, 3, 2, 5, 2, 2, 6, 3, 2, 9, 2, 2, 3, 2, 2, 3, 6, 2, 7, 2, 2, 2, 6, 2, 2, 3, 2, 3, 5, 2, 2, 3, 2, 2, 3, 2, 2, 5, 3, 2, 2, 9, 2, 2, 16, 3, 2, 3, 8, 2, 2, 3, 2, 2, 3, 5, 2, 6, 3, 2, 8, 2, 2, 5, 3, 2, 3, 6, 2, 3, 2, 2, 3, 6, 2, 8, 3, 2

Offset

1,1

Links

Table of n, a(n) for n=1..100.

Example

Row n = 1 of A246646(n,m) is 2, 1 with length 2.
Row n = 14 for the starting number k = A246647(14) = 27 of the (modified) Collatz iteration has 60 entries in the sieved table A246646.

Crossrefs

Cf. A246646, A246647.

Sequence in context: A309324 A220072 A065223 * A274415 A292584 A029621

Adjacent sequences: A248151 A248152 A248153 * A248155 A248156 A248157

Keyword

nonn,easy

Author

Wolfdieter Lang, Oct 02 2014

Status

approved