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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A327903 Number of set-systems covering n vertices where every edge has a different sum.

Table of values

n a(n)
0 1
1 1
2 5
3 77
4 7369
5 10561753
6 839653402893
7 15924566366443524837
8 315320784127456186118309342769
9 29238175285109256786706269143580213236526609
10 59347643832090275881798554403880633753161146711444051797893301

List of values

[1, 1, 5, 77, 7369, 10561753, 839653402893, 15924566366443524837, 315320784127456186118309342769, 29238175285109256786706269143580213236526609, 59347643832090275881798554403880633753161146711444051797893301]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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