multinomial - nodef/extra-math GitHub Wiki
Find the number of ways to put n objects in m bins (n=sum(kᵢ)).
Similar: factorial, binomial, multinomial.
function multinomial(...ks)
// ks: objects per bin (kᵢ)
const xmath = require('extra-math');
xmath.multinomial(1, 2);
// → 3
xmath.multinomial(1, 2, 3);
// → 60
xmath.multinomial(1, 2, 3, 4);
// → 12600