cp's OEIS Frontend

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.

A322117 Number of non-isomorphic blobs (2-connected weak antichains) of multisets of weight n.

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%I A322117 #7 Nov 27 2018 16:18:40
%S A322117 1,1,3,4,8,8,21,27,79,185,554
%N A322117 Number of non-isomorphic blobs (2-connected weak antichains) of multisets of weight n.
%H A322117 Gus Wiseman, <a href="http://www.mathematica-journal.com/2017/12/every-clutter-is-a-tree-of-blobs/">Every Clutter Is a Tree of Blobs</a>, The Mathematica Journal, Vol. 19, 2017.
%e A322117 Non-isomorphic representatives of the a(1) = 1 through a(6) = 21 blobs:
%e A322117   (1)  (11)    (111)      (1111)        (11111)          (111111)
%e A322117        (12)    (122)      (1122)        (11222)          (111222)
%e A322117        (1)(1)  (123)      (1222)        (12222)          (112222)
%e A322117                (1)(1)(1)  (1233)        (12233)          (112233)
%e A322117                           (1234)        (12333)          (122222)
%e A322117                           (11)(11)      (12344)          (122333)
%e A322117                           (12)(12)      (12345)          (123333)
%e A322117                           (1)(1)(1)(1)  (1)(1)(1)(1)(1)  (123344)
%e A322117                                                          (123444)
%e A322117                                                          (123455)
%e A322117                                                          (123456)
%e A322117                                                          (111)(111)
%e A322117                                                          (112)(122)
%e A322117                                                          (122)(122)
%e A322117                                                          (123)(123)
%e A322117                                                          (123)(233)
%e A322117                                                          (134)(234)
%e A322117                                                          (11)(11)(11)
%e A322117                                                          (12)(12)(12)
%e A322117                                                          (12)(13)(23)
%e A322117                                                          (1)(1)(1)(1)(1)(1)
%Y A322117 Cf. A002218, A007718, A013922, A275307, A286520, A293994, A304118, A304887, A319719, A319721, A322110, A322118.
%K A322117 nonn,more
%O A322117 0,3
%A A322117 _Gus Wiseman_, Nov 26 2018