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A134576 A127733 * A051731. 1
1, 4, 4, 9, 0, 9, 16, 16, 0, 16, 25, 0, 0, 0, 25, 36, 36, 36, 0, 0, 36, 49, 0, 0, 0, 0, 0, 49, 64, 64, 0, 64, 0, 0, 0, 64, 81, 0, 81, 0, 0, 0, 0, 0, 81, 100, 100, 0, 0, 100, 0, 0, 0, 0, 100 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row sums = A034714: (1, 8, 18, 48, 50, 144,...).

LINKS

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

FORMULA

A127733 * A051731 as infinite lower triangular matrices. Triangle read by rows: replace 1's in n-th row of A051731 with n^2.

EXAMPLE

First few rows of the triangle are:

1;

4, 4;

9, 0, 9;

16, 16, 0, 16;

25, 0, 0, 0, 25;

36, 36, 36, 0, 0, 36;

49, 0, 0, 0, 0, 0, 49;

...

CROSSREFS

Cf. A051731, A127733, A034714.

Sequence in context: A201989 A071775 A269594 * A176441 A143183 A165441

Adjacent sequences:  A134573 A134574 A134575 * A134577 A134578 A134579

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, Nov 02 2007

STATUS

approved

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Last modified January 23 17:33 EST 2022. Contains 350514 sequences. (Running on oeis4.)