A256297 -id:A256297 - cp's OEIS frontend

A256307 Apply the transformation 0 -> 1 -> 2 -> 3 -> 4 -> 5 -> 6 -> 0 to the digits of n written in base 7; do not convert back to base 10.

1, 2, 3, 4, 5, 6, 0, 21, 22, 23, 24, 25, 26, 20, 31, 32, 33, 34, 35, 36, 30, 41, 42, 43, 44, 45, 46, 40, 51, 52, 53, 54, 55, 56, 50, 61, 62, 63, 64, 65, 66, 60, 1, 2, 3, 4, 5, 6, 0, 211, 212, 213, 214, 215, 216, 210, 221, 222, 223, 224

Offset: 0

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M. F. Hasler, Mar 22 2015

nonn
base
easy

Base 7 variant of A256078 (base 2) and A048379 (base 10). See A256303 - A256308 for bases 3 through 8, A256289 for base 9, and A256297 for the variant where the result is converted back to base 10.

			a(7) = 21 because 7 = "10" (in base 7) becomes "21".
a(48) = 0 because 48 = "66" (in base 7) becomes "00".

Table[FromDigits[IntegerDigits[n,7]/.{0->1,1->2,2->3,3->4,4->5,5->6,6->0}],{n,0,60}] (* Harvey P. Dale, Oct 09 2023 *)

A256307(n,b=7)=!n+eval(Strchr(apply(d->(d+1)%b+48, digits(n,b))))

cp's OEIS Frontend

A256307 Apply the transformation 0 -> 1 -> 2 -> 3 -> 4 -> 5 -> 6 -> 0 to the digits of n written in base 7; do not convert back to base 10.

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