User:Tian Vlasic

I am a high school student passionate about mathematics. I am currently working in association with the Faculty of Science, Zagreb in Croatia.

I have contributed to the OEIS via the following entries:

A356544 - Number of strict closure operators on a set of n elements such that all pairs of nonempty disjoint closed sets can be separated by clopen sets.

A358144 - Number of strict closure operators on a set of n elements such that all pairs of distinct points can be separated by clopen sets.

A358152 - Number of strict closure operators on a set of n elements such that every point and every set disjoint from that point can be separated by clopen sets.

A364656 - Number of strict interval closure operators on a set of n elements.

A364656 - Number of strict interval closure operators on a set of n elements.

A349931 - Numbers that have an equal number of factorizations of even and odd length in both unordered and ordered manners.

A350486 - Numbers that have an equal number of even- and odd-length unordered factorizations and also an equal number of even- and odd-length unordered factorizations into distinct factors.

A363848 - Decimal expansion of the arithmetic mean of the isoperimetric quotient of ellipses when expressed in terms of their eccentricity.

A363874 - Decimal expansion of the harmonic mean of the isoperimetric quotient of ellipses when expressed in terms of their eccentricity.

A363876 - Decimal expansion of the geometric mean of the isoperimetric quotient of ellipses when expressed in terms of their eccentricity.

A369713 - a(n) is the sum over all multiplicative partitions k of n of the absolute value of the Möbius function evaluated at k,n in the poset of multiplicative partitions of n under refinement.