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A258640 Whole number sieve of square root of 2. 4
1, 3, 4, 8, 9, 80, 9, 69, 0, 7, 7, 8, 2, 0, 5, 3, 7, 0, 9, 0, 8, 37, 4, 0, 55, 75, 99, 50, 7, 0, 5, 97, 27, 9, 1, 9, 8, 55, 9, 48, 87, 2, 8, 36, 95, 79, 25, 3, 88, 20, 5, 47, 8, 6, 37, 70, 54, 60, 8, 8, 60, 4, 50, 0, 5, 2, 6, 0, 7, 130, 18, 86, 2, 34 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Manfred Scheucher, Table of n, a(n) for n = 1..544

Manfred Scheucher, Sage Script

EXAMPLE

Find the first occurrence of 0 (the first whole number) in the digits of sqrt(2) (only 35 digits in this illustration):

14142135623730950488016887242096980..., and replace it with a space:

1414213562373 950488016887242096980...  Repeat the process with the next whole number, 1:

414213562373 950488016887242096980...  Then 2:

414 13562373 950488016887242096980...  Then 3:

414 1 562373 950488016887242096980...  Then 4,5,6,7, etc., until the first occurrence of every counting number is eliminated from the digits of sqrt(2).

     1      3    4     8      9    ...  Then consolidate gaps between the remaining digits into a single comma:

1,3,4,8,9,80,9,69,0,7,7,8,2,0,5,3, ...  to produce the first terms in the whole number sieve of sqrt(2).

CROSSREFS

Cf. A002193, A248831, A247747, A257835, A258481.

Sequence in context: A320355 A113057 A253606 * A185726 A152520 A239976

Adjacent sequences:  A258637 A258638 A258639 * A258641 A258642 A258643

KEYWORD

nonn,base

AUTHOR

Manfred Scheucher, Jun 06 2015

STATUS

approved

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Last modified April 8 04:26 EDT 2020. Contains 333312 sequences. (Running on oeis4.)