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 A167846 #9 May 07 2025 13:15:42 %S A167846 1021,1031,1033,1051,1061,1063,1069,1087,1091,1093,1097,1103,1109, %T A167846 1151,1153,1163,1171,1181,1187,1193,1201,1213,1217,1223,1229,1277, %U A167846 1279,1283,1289,1291,1297,1301,1303,1307,1319,1327,1361,1367,1373,1381,1399,1409,1423 %N A167846 Concave-convex primes. %C A167846 Primes in A163278. %C A167846 Prime numbers with more than three digits that are not straight-line numbers (A135643), concave numbers (A135642) or convex numbers (A135641). %H A167846 Rémy Sigrist, <a href="/A167846/b167846.txt">Table of n, a(n) for n = 1..10000</a> %Y A167846 Cf. A134811, A134951, A134971, A135641, A135642, A135643, A163278, A167841, A167842, A167843, A167844, A167845, A167853. %K A167846 base,nonn %O A167846 1,1 %A A167846 _Omar E. Pol_, Nov 13 2009 %E A167846 More terms from _Rémy Sigrist_, May 22 2019