A143966 - OEIS

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A143966

Eigentriangle with row sums = A001333 starting (1, 3, 7, 17, 41, 99, ...).

1, 2, 1, 2, 2, 3, 2, 2, 6, 7, 2, 2, 6, 14, 17, 2, 2, 6, 14, 34, 41, 2, 2, 6, 14, 34, 82, 99, 2, 2, 6, 14, 34, 82, 198, 239, 2, 2, 6, 14, 34, 82, 198, 478, 577

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

OFFSET

0,2

COMMENTS

Right border = A001333.

Row sums = shifted A001333: (1, 3, 7, 17, 41, 99, ...) = INVERT transform of (1, 2, 2, 2, ...). Sum of n-th row terms = rightmost term of next row.

LINKS

Table of n, a(n) for n=0..44.

FORMULA

n-th row of the triangle = n terms of twice A001333: (1, 1, 3, 7, 17, 41, 99, ...) followed by A001333(n).

EXAMPLE

First few rows of the triangle: