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 A183087 Generalized canyon primes. 1
 101, 103, 107, 109, 307, 313, 317, 401, 409, 419, 439, 503, 509, 523, 547, 607, 613, 617, 619, 647, 659, 701, 709, 719, 727, 739, 757, 769, 809, 823, 827, 829, 839, 857, 859, 907, 919, 929, 937, 947, 967, 1013, 1019, 1039, 1049, 1069, 2017, 2027, 2029 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Primes in A183086. Supersequence of A134971 because the restriction that both cliffs are at same level (first digit equal to the final digit) is dropped here. This sequence is finite because A183086 is. Questions: How many terms are there in this sequence? What is the largest term? LINKS FORMULA A000040 INTERSECT A183086. EXAMPLE Illustration of 751379 as a generalized canyon prime: . . . . . 9 . . . . . . 7 . . . 7 . . . . . . . . 5 . . . . . . . . . . . . . 3 . . . . . . . . . . 1 . . . . . . . . . CROSSREFS Cf. A134971, A167853, A183086. Sequence in context: A048528 A164739 A085821 * A056709 A243825 A309488 Adjacent sequences:  A183084 A183085 A183086 * A183088 A183089 A183090 KEYWORD nonn,base,fini AUTHOR Omar E. Pol, Jan 19 2011 STATUS approved

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Last modified October 22 08:00 EDT 2019. Contains 328315 sequences. (Running on oeis4.)