1,2

From Wolfdieter Lang, Feb 21 2017: (Start)

For a(1)..a(59) this sequence coincides with A007953.

For the sexagesimal - decimal representation of n see A055643.

The values of the positions is given in A281863.

The sum of the digits of A055643(n) = a(n).

The number of digits of the representation of n is given in A282622. (End)

Wolfdieter Lang, Table of n, a(n) for n = 1..10000

Wikipedia, Babylonian numerals.

Babylonian numerals.

High resolution photographs, descriptions and analysis of the root(2) tablet (YBC 7289) from the Yale Babylonian Collection

(PARI) a(n) = n\10 + n%10 \\ for n <= 59. Michel Marcus, Jul 12 2013

Cf. A006968, A007953, A055643, A281863, A282622.

Sequence in context: A128244 A010888 A177274 * A033930 A076314 A007953

Adjacent sequences: A131647 A131648 A131649 * A131651 A131652 A131653

nonn,base,easy

Alain Van Kerckhoven (alain(AT)avk.org), Sep 10 2007

More terms from Michel Marcus, Jul 12 2013

Terms a(60)..a(81) from Wolfdieter Lang, Feb 21 2017 (to distinguish it from A007953)

approved