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A143966 Eigentriangle with row sums = A001333 starting (1, 3, 7, 17, 41, 99,...). 1
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 =

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;

...

CROSSREFS

A001333

Sequence in context: A137735 A290983 A272887 * A260617 A178695 A185315

Adjacent sequences:  A143963 A143964 A143965 * A143967 A143968 A143969

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, Sep 06 2008

STATUS

approved

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Last modified February 21 12:59 EST 2018. Contains 299411 sequences. (Running on oeis4.)