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 A322046 #16 Jan 05 2025 19:51:41 %S A322046 1,1,1,1,1,2,4,2,1,1,3,8,10,8,3,1,1,4,13,24,31,24,13,4,1,1,5,19,45,78, %T A322046 93,78,45,19,5,1,1,6,26,74,158,248,290,248,158,74,26,6,1 %N A322046 Irregular triangle read by rows: a Pascal "rhombus", third in the sequence after A059317 and A027907. %H A322046 Sheng-Liang Yang and Yuan-Yuan Gao, <a href="https://web.archive.org/web/2024*/https://www.fq.math.ca/Papers1/56-4/yanggao1032018.pdf">The Pascal rhombus and Riordan arrays</a>, Fib. Q., 56:4 (2018), 337-347. See Fig. 4. %e A322046 Triangle begins: %e A322046 1, %e A322046 1,1,1, %e A322046 1,2,4,2,1, %e A322046 1,3,8,10,8,3,1,, %e A322046 1,4,13,24,31,24,13,4,1,, %e A322046 1,5,19,45,78,93,78,45,19,5,1,, %e A322046 1,6,26,74,158,248,290,248,158,74,26,6,1, %e A322046 ... %Y A322046 Cf. A059317 and A027907. %K A322046 nonn,tabf,more %O A322046 0,6 %A A322046 _N. J. A. Sloane_, Dec 07 2018