OFFSET
1,3
COMMENTS
LINKS
Lars Blomberg, Table of n, a(n) for n = 1..9870 (the first 140 rows)
EXAMPLE
Triangle begins:
0
0,4
0,10,20
0,16,34,48
0,22,44,70,88
0,28,58,88,118,140
0,34,68,102,140,178,204
0,40,82,124,166,208,250,280
0,46,92,142,184,238,284,334,368
0,52,106,156,214,268,318,376,430,468
0,58,116,178,236,290,356,418,476,538,580
0,64,130,196,262,328,394,460,526,592,658,704
-----
A right angle is marked 'r', an obtuse one 'o'.
For n=2, k=2
rx xr x. .x
x. .x rx xr
So T(2,2)=4.
-----
For n=3, k=2
xo. r.x x.x x.r x.. x.. .ox .r. ..x ..x
..x x.. .r. ..x r.x .ox x.. x.x xo. x.r
So T(3,2)=10.
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Lars Blomberg, Feb 27 2017
STATUS
approved