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A036904 Scan decimal expansion of e until all n-digit strings have been seen; a(n) is number of digits that must be scanned. 1
21, 372, 8092, 102128, 1061613, 12108841, 198150341, 1929504534 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The digits scanned are {2, 7, 1, 8, 2, 8, ...}, so the initial 2 in 2.71828... is included and counted as the first digit.

LINKS

Table of n, a(n) for n=1..8.

Eric Weisstein's World of Mathematics, Constant Digit Scanning

Eric Weisstein's World of Mathematics, e Digits

CROSSREFS

Cf. A001113 (decimal expansion of e).

Cf. A036900 (last number encountered when scanning the decimal expansion of e for all n-digit strings).

Cf. A088576 (starting positions of the first occurrence of n in the decimal expansion of e).

Cf. A032510, A036900-A036906.

Sequence in context: A108495 A178351 A152182 * A218763 A181364 A134494

Adjacent sequences:  A036901 A036902 A036903 * A036905 A036906 A036907

KEYWORD

nonn,base

AUTHOR

Michael Kleber

EXTENSIONS

a(7) = 198150341 from Piotr Idzik, Nov 01 2011

a(8) = 1929504534 from Eric W. Weisstein, Sep 11 2013

STATUS

approved

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Last modified February 22 11:16 EST 2018. Contains 299452 sequences. (Running on oeis4.)