A091604 - OEIS

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A091604

Matrix square of triangle A091602.

1, 2, 1, 4, 0, 1, 6, 4, 0, 1, 10, 4, 2, 0, 1, 17, 8, 4, 2, 0, 1, 25, 12, 7, 2, 2, 0, 1, 38, 25, 9, 7, 2, 2, 0, 1, 57, 33, 19, 8, 5, 2, 2, 0, 1, 84, 57, 27, 16, 8, 5, 2, 2, 0, 1, 120, 81, 46, 22, 15, 6, 5, 2, 2, 0, 1, 174, 129, 68, 41, 19, 15, 6, 5, 2, 2, 0, 1, 243, 182, 107, 56, 36, 18, 13, 6

(list; table; graph; refs; listen; history; text; internal format)

OFFSET

1,2

LINKS

Table of n, a(n) for n=1..86.

EXAMPLE

1; 2,1; 4,0,1; 6,4,0,1; 10,4,2,0,1; ...

CROSSREFS

Cf. A091602, A091610 (row sums), A091611 (column 1).

Sequence in context: A143316 A127192 A122141 * A200192 A137629 A220504

Adjacent sequences: A091601 A091602 A091603 * A091605 A091606 A091607

KEYWORD

nonn,tabl

AUTHOR

Christian G. Bower, Jan 23 2004

STATUS

approved