A055958 -id:A055958 - cp's OEIS frontend

A030108 Base 9 reversal of n (written in base 10).

0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 10, 19, 28, 37, 46, 55, 64, 73, 2, 11, 20, 29, 38, 47, 56, 65, 74, 3, 12, 21, 30, 39, 48, 57, 66, 75, 4, 13, 22, 31, 40, 49, 58, 67, 76, 5, 14, 23, 32, 41, 50, 59, 68, 77, 6, 15, 24, 33, 42, 51, 60, 69, 78, 7, 16, 25, 34, 43, 52, 61, 70, 79, 8, 17, 26, 35, 44

Offset: 0

David W. Wilson

Seiichi Manyama, Table of n, a(n) for n = 0..6560

Cf. A030101 - A030107, A004086, A055958, A319726.

Table[FromDigits[Reverse[IntegerDigits[n,9]],9],{n,0,80}] (* Harvey P. Dale, Jun 01 2017 *)

apply( {A030108(n,b=9)=fromdigits(Vecrev(digits(n,b)),b)}, [0..99])  \\ M. F. Hasler, May 21 2021, replacing earlier code from M. F. Hasler, Nov 04 2011

A319747 a(n) = A319726(n) + A319657(n).

Original entry on oeis.org

0, 2, 4, 6, 8, 10, 12, 14, 16, 10, 20, 30, 40, 50, 60, 70, 80, 90, 20, 30, 40, 50, 60, 70, 80, 90, 100, 30, 40, 50, 60, 70, 80, 90, 100, 110, 40, 50, 60, 70, 80, 90, 100, 110, 120, 50, 60, 70, 80, 90, 100, 110, 120, 130, 60, 70, 80, 90, 100, 110, 120, 130, 140, 70

Offset: 0

Seiichi Manyama, Sep 27 2018

This sequence is different from A055958. For example, A055958(82) = 164 and a(82) = 100.

Seiichi Manyama, Table of n, a(n) for n = 0..6560

Base b: A319785 (b=2), this sequence (b=9), A052008 (b=10).

Cf. A055958, A165110, A319657, A319726.

Table[FromDigits[Reverse[#], 9] + FromDigits[#, 9] & [Sort[IntegerDigits[n, 9]]], {n, 0, 100}] (* Paolo Xausa, Aug 08 2024 *)

a(n) = my(dn=digits(n, 9)); fromdigits(vecsort(dn), 9) + fromdigits(vecsort(dn,,4), 9); \\ Michel Marcus, Sep 28 2018

cp's OEIS Frontend

A030108 Base 9 reversal of n (written in base 10).

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