A359224 Numbers whose decimal representation is the reverse of their base-7 representation.

0, 1, 2, 3, 4, 5, 6, 23, 46, 2116, 15226, 32361

Offset: 1

Author

Mohammed Yaseen, Dec 21 2022

Keywords

• nonn
• base
• more

Examples

			23 is a term since 23_7 = 32 which reversed is 23.
32361 is a term since 32361_7 = 163230 which reversed is 032361 and the leading 0 is disregarded.
		

Crossrefs

Cf. A004086, A007093.

Programs

PARI

isok(n) = fromdigits(Vecrev(digits(n, 7))) == n

Extensions

a(12) from Jon E. Schoenfield, Dec 21 2022