A167846 Concave-convex primes.

1021, 1031, 1033, 1051, 1061, 1063, 1069, 1087, 1091, 1093, 1097, 1103, 1109, 1151, 1153, 1163, 1171, 1181, 1187, 1193, 1201, 1213, 1217, 1223, 1229, 1277, 1279, 1283, 1289, 1291, 1297, 1301, 1303, 1307, 1319, 1327, 1361, 1367, 1373, 1381, 1399, 1409, 1423

Offset

1,1

Comments

Primes in A163278.

Primes numbers with more than three digits that are not straight-line numbers (A135643), concave numbers (A135642) or convex numbers (A135641).

Links

Rémy Sigrist, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A134811, A134951, A134971, A135641, A135642, A135643, A163278, A167841, A167842, A167843, A167844, A167845, A167853.

Sequence in context: A216115 A024020 A069791 * A303918 A371378 A228625

Adjacent sequences: A167843 A167844 A167845 * A167847 A167848 A167849

Keyword

base,nonn

Author

Omar E. Pol, Nov 13 2009

Extensions

More terms from Rémy Sigrist, May 22 2019

Status

approved