A053844 (Sum of digits of n written in base 9) modulo 9.

0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 8, 0, 2, 3, 4, 5, 6, 7, 8, 0, 1, 3, 4, 5, 6, 7, 8, 0, 1, 2, 4, 5, 6, 7, 8, 0, 1, 2, 3, 5, 6, 7, 8, 0, 1, 2, 3, 4, 6, 7, 8, 0, 1, 2, 3, 4, 5, 7, 8, 0, 1, 2, 3, 4, 5, 6, 8, 0, 1, 2, 3, 4, 5, 6, 7, 1, 2, 3, 4, 5, 6, 7, 8, 0, 2, 3, 4, 5, 6, 7, 8, 0, 1, 3, 4, 5, 6, 7, 8

Offset

0,3

Links

Paolo Xausa, Table of n, a(n) for n = 0..10000

Robert Walker, Self Similar Sloth Canon Number Sequences

Formula

a(n) = A010878(A053830(n)). - Paolo Xausa, Aug 09 2024

Mathematica

Mod[DigitSum[Range[0, 100], 9], 9] (* Paolo Xausa, Aug 09 2024 *)

Crossrefs

Eighth row of the array in A141803.

Cf. A010878, A053830.

Cf. A010060, A053837-A053843.

Sequence in context: A277547 A190598 A338882 * A010887 A101412 A338496

Adjacent sequences: A053841 A053842 A053843 * A053845 A053846 A053847

Keyword

base,nonn,changed

Author

Henry Bottomley, Mar 28 2000

Status

approved