OFFSET
0,2
MATHEMATICA
a[n_] := FromDigits[Join @@ Table[IntegerDigits[Binomial[n, k], 2], {k, 0, n}], 2]; Array[a, 15, 0] (* Amiram Eldar, Nov 14 2021 *)
PROG
(PARI) a(n) = fromdigits(concat(vector(n+1, k, binary(binomial(n, k-1)))), 2); \\ Michel Marcus, Nov 14 2021
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Bernard Schott, Nov 14 2021
STATUS
approved