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.
%I A036359 #9 Jul 08 2025 21:44:15 %S A036359 0,0,0,1,2,12,53,250,1115,5012,22032,96746,422732,1848128,8088090, %T A036359 35498533,156328706,691192578,3068780449,13683070474,61267204610, %U A036359 275455737555,1243320744572,5633022679582,25611815936218,116840427373176,534705818846660,2454282243059471 %N A036359 Number of branched catafusenes with n condensed hexagons. %D A036359 F. Harary and R. C. Read, The Enumeration of Tree-like Polyhexes, Proc. Edinburgh Math. Soc., Series II, 17 (1970), pp. 1-13. %D A036359 Alexandru T. Balaban, The Enumeration of Cyclic Graphs, pp. 63-105 of A. T. Balaban, ed., Chemical Applications of Graph Theory, Ac. Press, 1976; see p. 75. %F A036359 a(n) = A002216(n) - A001998(n-2) with A001998(-1)=1. - _Sean A. Irvine_, Oct 26 2020 %Y A036359 Cf. A036359, A002216, A005963, A000228, A001998. %K A036359 nonn %O A036359 1,5 %A A036359 _N. J. A. Sloane_ %E A036359 More terms from _Sean A. Irvine_, Oct 26 2020