

A117502


Triangle, row sums = A001595.


1



1, 1, 2, 1, 1, 3, 1, 1, 2, 5, 1, 1, 2, 3, 8, 1, 1, 2, 3, 5, 13, 1, 1, 2, 3, 5, 8, 21, 1, 1, 2, 3, 5, 8, 13, 34, 1, 1, 2, 3, 5, 8, 13, 21, 55, 1, 1, 2, 3, 5, 8, 13, 21, 34, 89
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OFFSET

1,3


COMMENTS

Row sums = A001595 starting (1, 3, 9, 15, 25, 41...)


LINKS

Table of n, a(n) for n=1..55.


FORMULA

nth row = first n Fibonacci terms, with a deletion of F(n). Columns of the triangle are difference terms of the array in A117501.


EXAMPLE

Row 5 of the triangle = (1, 1, 2, 3, 8); the first 5 Fibonacci terms with a deletion of F(5) = 5.
First few rows of the triangle are:
1;
1, 2;
1, 1, 3;
1, 1, 2, 5;
1, 1, 2, 3, 8;
...


CROSSREFS

Cf. A117501, A001595.
Sequence in context: A306680 A083312 A032435 * A212630 A030360 A232529
Adjacent sequences: A117499 A117500 A117501 * A117503 A117504 A117505


KEYWORD

nonn,tabl


AUTHOR

Gary W. Adamson, Mar 23 2006


STATUS

approved



