A171900 - OEIS

A171900

Backwards van Eck transform of A010060.

0, 0, 1, 3, 2, 2, 1, 3, 1, 3, 1, 3, 2, 2, 1, 3, 2, 2, 1, 3, 2, 2, 1, 3, 1, 3, 1, 3, 2, 2, 1, 3, 1, 3, 1, 3, 2, 2, 1, 3, 1, 3, 1, 3, 2, 2, 1, 3, 2, 2, 1, 3, 2, 2, 1, 3, 1, 3, 1, 3, 2, 2, 1, 3, 2, 2, 1, 3, 2, 2, 1, 3, 1, 3, 1, 3, 2, 2, 1, 3, 2, 2, 1, 3, 2, 2, 1, 3, 1, 3, 1, 3, 2, 2, 1, 3, 1, 3, 1, 3, 2, 2, 1, 3, 1

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OFFSET

1,4

COMMENTS

See A171898 for definition. This assumes the offset of A010060 is taken to be 1.

A161916 gives the forwards van Eck transform of A010060.

Since A001285(n) = 1+A010060(n) differ only by a constant, this is also the Backwards van Eck Transform of A001285. - R. J. Mathar, Jun 24 2021

LINKS

Table of n, a(n) for n=1..105.

FORMULA

A026491(n-1)-A026491(n-2) = a(n) for n>=3. - Michel Dekking, Apr 11 2019

CROSSREFS