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 A116183 #8 Dec 26 2022 13:01:15 %S A116183 3,4,5,5,6,8,6,9,8,13,7,10,16,12,21,8,13,16,29,16,34,9,14,24,26,52,24, %T A116183 55,10,17,24,45,42,94,32,89,11,18,32,42,84,68,169 %N A116183 Array T(k,n) = number of meaningful differential operations of the n-th order on the space R^(3+k), for k=>0, n>0, read by antidiagonals. %C A116183 Two more rows can be obtained from A129638 and A129639. %H A116183 Branko Malesevic, <a href="http://pefmath2.etf.rs/files/118/869.pdf">Some combinatorial aspects of differential operation composition on the space R^n</a>, Univ. Beograd, Publ. Elektrotehn. Fak., Ser. Mat. 9 (1998), 29-33; arXiv:<a href="https://arxiv.org/abs/0704.0750">0704.0750</a> [math.DG], 2007. %e A116183 Table begins: %e A116183 k=0.|.3..5..8.13..21..34..55..89..144..233..377..610..987.1597... %e A116183 k=1.|.4..6..8.12..16..24..32..48...64...96..128..192..256..384... %e A116183 k=2.|.5..9.16.29..52..94.169.305..549..990.1783.3214.5790... %e A116183 k=3.|.6.10.16.26..42..68.110.178..288..466..754.1220.1974... %e A116183 k=4.|.7.13.24.45..84.158.296.557.1045.1966.3691.6942.13038... %e A116183 k=5.|.8.14.24.42..72.126.216.378..648.1134.1944.3402..5832... %e A116183 k=6.|.9.17.32.61.116.222.424.813.1556.2986.5721.10982... %e A116183 k=7.|10.18.32.58.104.188.338.610.1098.1980.3566.6428... %Y A116183 k=0 row is A020701. k=1 row is A090989. k=2 row is A090990. k=3 row is A090991. k=4 row is A090992. k=5 row is A090993. k=6 row is A090994. k=7 row is A090995. %Y A116183 Diagonal: A127935. %K A116183 easy,nonn,tabl %O A116183 1,1 %A A116183 _Jonathan Vos Post_, Apr 08 2007