A079064 - OEIS

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A079064

a(n) is the next available entirely straight or curved number, depending on whether n contains a straight digit or not.

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 14, 17, 41, 44, 47, 71, 74, 77, 111, 200, 411, 500, 502, 711, 800, 802, 1111, 2000, 2002, 2003, 4111, 5000, 5002, 7111, 8000, 8002, 11111, 20000, 20002, 41111, 41114, 41117, 41141, 41144, 41147, 41171, 41174, 41177, 41411, 50000

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,3

LINKS

David Consiglio, Jr., Table of n, a(n) for n = 0..1000

David Consiglio, Jr., Python program

EXAMPLE

a(10) must be the first entirely straight number greater than 9, as 1 is straight, therefore a(10)=11.

a(20) must be the first entirely curved number greater than 111, therefore a(20)=200.

CROSSREFS

Cf. A028373 (straight numbers), A028374 (curved numbers), A079170.

Sequence in context: A202940 A082324 A219955 * A123176 A017902 A005710