A008571 - OEIS (original) (raw)

1, 1, 1, 1, 2, 1, 1, 3, 3, 1, 1, 4, 6, 4, 1, 1, 6, 1, 0, 5, 1, 1, 7, 7, 1, 5, 6, 1, 1, 9, 4, 8, 7, 1, 7, 1, 2, 1, 4, 3, 5, 8, 8, 8, 1, 2, 3, 5, 7, 9, 4, 7, 6, 9, 1, 2, 5, 9, 3, 7, 4, 2, 4, 6, 0, 1, 2, 8, 5, 3, 1, 1, 6, 7, 0, 6, 1, 1, 3, 1, 3, 8, 4, 2, 8, 3, 7, 6, 7, 2, 1, 3, 4, 5, 2, 2, 7, 1, 2

COMMENTS

The constant whose decimal expansion is this sequence is irrational (Mahler, 1981). - Amiram Eldar, Mar 23 2025

EXAMPLE

Triangle begins:

1;

1, 1;

1, 2, 1;

1, 3, 3, 1;

1, 4, 6, 4, 1;

1, 6, 1, 0, 5, 1;

1, 7, 7, 1, 5, 6, 1;

1, 9, 4, 8, 7, 1, 7, 1;

2, 1, 4, 3, 5, 8, 8, 8, 1;

...

MATHEMATICA

IntegerDigits[11^Range[0, 20]]//Flatten (* Harvey P. Dale, Aug 26 2025 *)

CROSSREFS

Cf. A000455, A008564, A008565, A008566, A008567, A008568, A008569, A008570, A008572, A008573, A010054.