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 A287428 #13 Feb 16 2025 08:33:46 %S A287428 1,2,3,3,12,4,5,47,32,7,8,185,228,108,11,13,728,1655,1511,342,18,21, %T A287428 2865,11978,21497,9213,1104,29,34,11275,86731,305184,253880,57536, %U A287428 3544,47,55,44372,627960,4334009,6974078,3079253,356863,11396,76 %N A287428 Array read by antidiagonals: T(m,n) is the number of matchings in the stacked prism graph C_m X P_n. %C A287428 Row 1 is the number of matchings in P_n and row 2 is the number of matchings in G X P_n where G is a double edge. These choices give the best fit with the column linear recurrences. %H A287428 Andrew Howroyd, <a href="/A287428/b287428.txt">Table of n, a(n) for n = 1..435</a> %H A287428 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/StackedPrismGraph.html">Stacked Prism Graph</a> %e A287428 Table starts: %e A287428 ====================================================================== %e A287428 m\n| 1 2 3 4 5 6 7 %e A287428 ---|------------------------------------------------------------------ %e A287428 1 | 1 2 3 5 8 13 21 ... %e A287428 2 | 3 12 47 185 728 2865 11275 ... %e A287428 3 | 4 32 228 1655 11978 86731 627960 ... %e A287428 4 | 7 108 1511 21497 305184 4334009 61545775 ... %e A287428 5 | 11 342 9213 253880 6974078 191668283 5267252351 ... %e A287428 6 | 18 1104 57536 3079253 164206124 8761336545 467431319920 ... %e A287428 7 | 29 3544 356863 37071837 3834744194 396924243197 41080815923665 ... %e A287428 ... %Y A287428 Rows 2..13 are A088132, A033515, A033516, A033517, A033518, A033519-A033525. %Y A287428 Columns 2..3 are A102080, A102090. %Y A287428 Cf. A028420 (P_m X P_n), A270246 (C_m X C_n), A270227 (K_m X K_n). %K A287428 nonn,tabl %O A287428 1,2 %A A287428 _Andrew Howroyd_, May 25 2017