A138073 - OEIS

A138073

Triangle read by rows: row n lists the digits of A135699(n), the palindromic number with odd number of digits formed from the reflected decimal expansion of golden ratio phi.

1, 1, 6, 1, 1, 6, 1, 6, 1, 1, 6, 1, 8, 1, 6, 1, 1, 6, 1, 8, 0, 8, 1, 6, 1, 1, 6, 1, 8, 0, 3, 0, 8, 1, 6, 1, 1, 6, 1, 8, 0, 3, 3, 3, 0, 8, 1, 6, 1, 1, 6, 1, 8, 0, 3, 3, 9, 3, 3, 0, 8, 1, 6, 1, 1, 6, 1, 8, 0, 3, 3, 9, 8, 9, 3, 3, 0, 8, 1, 6, 1

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,3

COMMENTS

Also, successive digits of the terms of A135699.

LINKS

G. C. Greubel, Table of n, a(n) for the first 50 rows

EXAMPLE

Triangle begins:

.............. 1

........... 1, 6, 1

........ 1, 6, 1, 6, 1

..... 1, 6, 1, 8, 1, 6, 1

.. 1, 6, 1, 8, 0, 8, 1, 6, 1

MATHEMATICA

nn=10; With[{phi=RealDigits[GoldenRatio, 10, nn+1][[1]]}, Flatten[ Table[ Join[Take[phi, n], Take[phi, {n+1}], Reverse[Take[phi, n]]], {n, 0, nn}]]] (* Harvey P. Dale, May 08 2012 *)

CROSSREFS

Decimal expansion of phi: A001622. Cf. A135699, A135700, A138072.

Sequence in context: A325385 A195385 A319990 * A131778 A095713 A138072

Adjacent sequences: A138070 A138071 A138072 * A138074 A138075 A138076

KEYWORD

easy,nonn,tabf,base

AUTHOR

Omar E. Pol, Mar 03 2008

STATUS

approved