OFFSET
0,25
COMMENTS
The triangle of inequivalent binary linear [n,k] codes (A076831) looks much like Pascal's triangle (A007318). They start to differ in the middle of row 6. This triangle is the difference between them. Its row sums are A250003 - the difference between the numbers of inequivalent binary linear codes of length n (A076766) and the powers of two (A000079).
EXAMPLE
k 0 1 2 3 4 5 6 7 8 9 10 11 sums
n
0 0 0
1 0 0 0
2 0 0 0 0
3 0 0 0 0 0
4 0 0 0 0 0 0
5 0 0 0 0 0 0 0
6 0 0 1 2 1 0 0 4
7 0 0 2 8 8 2 0 0 20
8 0 0 4 21 36 21 4 0 0 86
9 0 0 7 47 114 114 47 7 0 0 336
10 0 0 11 93 306 453 306 93 11 0 0 1273
11 0 0 16 168 730 1526 1526 730 168 16 0 0 4880
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Tilman Piesk, Nov 10 2014
STATUS
approved