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A138895 A Collatz-related sequence array. 2
1, 2, 1, 4, 2, 1, 8, 4, 2, 1, 5, 8, 4, 2, 1, 3, 5, 8, 4, 2, 1, 6, 3, 5, 8, 4, 2, 1, 12, 6, 3, 5, 8, 4, 2, 1, 24, 12, 6, 3, 5, 8, 4, 2, 1, 17, 24, 12, 6, 3, 5, 8, 4, 2, 1, 11, 17, 24, 12, 6, 3, 5, 8, 4, 2, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Row sums are A138847. Diagonal sums are A138848.

LINKS

Table of n, a(n) for n=0..65.

FORMULA

T(n,k)=[k<=n]*A092892(n-k)

EXAMPLE

Triangle begins

1,

2, 1,

4, 2, 1,

8, 4, 2, 1,

5, 8, 4, 2, 1,

3, 5, 8, 4, 2, 1,

6, 3, 5, 8, 4, 2, 1,

12, 6, 3, 5, 8, 4, 2, 1,

24, 12, 6, 3, 5, 8, 4, 2, 1,

17, 24, 12, 6, 3, 5, 8, 4, 2, 1,

11, 17, 24, 12, 6, 3, 5, 8, 4, 2, 1

CROSSREFS

Cf. A138846.

Sequence in context: A140740 A091918 A177953 * A138846 A235670 A130321

Adjacent sequences:  A138892 A138893 A138894 * A138896 A138897 A138898

KEYWORD

easy,nonn,tabl

AUTHOR

Paul Barry, Apr 02 2008

STATUS

approved

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Last modified January 17 15:12 EST 2020. Contains 330958 sequences. (Running on oeis4.)