OFFSET
0,15
COMMENTS
T(m) has bilateral symmetry and 3-fold rotational symmetry.
LINKS
Rémy Sigrist, Colored representation of T(1023) (where the hue is function of T(1023)(n, k)).
Rémy Sigrist, Colored representation of T(1023) (where dark colors correspond to high values).
EXAMPLE
T(0) is:
1
T(1) is:
1
1 1
T(2) is:
1
1 1
1 1 1
T(3) is:
1
1 1
1 2 1
1 1 1 1
T(4) is:
1
1 1
1 1 1
1 1 1 1
1 1 1 1 1
T(5) is:
1
1 1
1 2 1
1 3 3 1
1 2 3 2 1
1 1 1 1 1 1
PROG
(PARI) T(m, n, k) = gcd([binomial(n, k), binomial(m-k, n-k), binomial(m-n+k, m-n)])
CROSSREFS
KEYWORD
nonn,tabf,easy
AUTHOR
Rémy Sigrist, Sep 01 2024
STATUS
approved