OFFSET
0,5
LINKS
Seiichi Manyama, Rows n = 0..139, flattened
FORMULA
T(n+1,n)^2 + 2*T(n,n)^2 = 11^n.
EXAMPLE
First few rows are:
0;
1, 1;
0, -3, -6;
-2, -2, 7, 25;
0, 6, 12, -9, -84;
4, 4, -14, -50, -23, 229;
0, -12, -24, 18, 168, 237, -450;
-8, -8, 28, 100, 46, -458, -1169, 181;
0, 24, 48, -36, -336, -474, 900, 4407, 3864.
--------------------------------------------------------------
The diagonal is {0, 1, -6, 25, -84, ...} and
the next diagonal is {1, -3, 7, -9, -23, ...}.
Two sequences have the following property:
1^2 + 2* 0^2 = 1 (= 11^0),
(-3)^2 + 2* 1^2 = 11 (= 11^1),
7^2 + 2* (-6)^2 = 121 (= 11^2),
(-9)^2 + 2* 25^2 = 1331 (= 11^3),
(-23)^2 + 2*(-84)^2 = 14641 (= 11^4),
...
CROSSREFS
KEYWORD
sign,tabl
AUTHOR
Seiichi Manyama, Sep 23 2017
STATUS
approved