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A115514 Triangle read by rows: row n lists first n positive members of A004526 (integers repeated) in decreasing order. 2
1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 3, 2, 2, 1, 1, 3, 3, 2, 2, 1, 1, 4, 3, 3, 2, 2, 1, 1, 4, 4, 3, 3, 2, 2, 1, 1, 5, 4, 4, 3, 3, 2, 2, 1, 1, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 7, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,4

COMMENTS

Row sums = A002620 starting (1, 2, 4, 6, 9, 12, 16, 20,...). - Gary W. Adamson, Oct 25 2007

Equals A000012 * A128174 - Gary W. Adamson, Oct 25 2007

LINKS

Table of n, a(n) for n=1..105.

EXAMPLE

Triangle begins:

{1},

{1, 1},

{2, 1, 1},

{2, 2, 1, 1},

{3, 2, 2, 1, 1},

{3, 3, 2, 2, 1, 1},

{4, 3, 3, 2, 2, 1, 1}

...

CROSSREFS

Cf. A000073, A004526, A128174, A002620.

Sequence in context: A174545 A102523 A083415 * A122632 A176809 A187451

Adjacent sequences:  A115511 A115512 A115513 * A115515 A115516 A115517

KEYWORD

nonn,tabl

AUTHOR

Roger L. Bagula, Mar 07 2006

EXTENSIONS

Edited by N. J. A. Sloane, Mar 23 2008

STATUS

approved

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Last modified December 6 05:01 EST 2016. Contains 278772 sequences.