A138116 -id:A138116 - cp's OEIS frontend

A011551 Decimal expansion of phi truncated to n places.

1, 16, 161, 1618, 16180, 161803, 1618033, 16180339, 161803398, 1618033988, 16180339887, 161803398874, 1618033988749, 16180339887498, 161803398874989, 1618033988749894, 16180339887498948, 161803398874989484, 1618033988749894848, 16180339887498948482

Offset: 0

N. J. A. Sloane

Vincenzo Librandi, Table of n, a(n) for n = 0..200

Cf. A001622 (phi), A138116 (triangle of digits), A195607 (fraction), A276198 (next prime).

Palindromes: A135699, A135700.

With[{phi=RealDigits[GoldenRatio,10,50][[1]]},Table[FromDigits[ Take[ phi,n]],{n,20}]] (* Harvey P. Dale, Feb 03 2012 *)

my(phi=quadgen(5)); a(n) = floor(phi*10^n); \\ Kevin Ryde, Jun 05 2021

A139261 Triangle read by rows: row n lists the first n digits of the decimal expansion of Euler's constant (or Euler-Mascheroni constant) gamma.

Original entry on oeis.org

5, 5, 7, 5, 7, 7, 5, 7, 7, 2, 5, 7, 7, 2, 1, 5, 7, 7, 2, 1, 5, 5, 7, 7, 2, 1, 5, 6, 5, 7, 7, 2, 1, 5, 6, 6, 5, 7, 7, 2, 1, 5, 6, 6, 4, 5, 7, 7, 2, 1, 5, 6, 6, 4, 9, 5, 7, 7, 2, 1, 5, 6, 6, 4, 9, 0, 5, 7, 7, 2, 1, 5, 6, 6, 4, 9, 0, 1

Offset: 1

Omar E. Pol, May 01 2008

Also, successive digits of A139260.

			Triangle begins:
....... 5
...... 5,7
..... 5,7,7
.... 5,7,7,2
... 5,7,7,2,1

Decimal expansion of gamma: A001620.

Cf. A138114, A138115, A138116, A139258, A139259, A139260.

a[n_]:=FromDigits[RealDigits[EulerGamma,10,n][[1]]];IntegerDigits/@Array[a,12]//Flatten (* James C. McMahon, Jun 29 2025 *)

cp's OEIS Frontend

A011551 Decimal expansion of phi truncated to n places.

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