A036904 Scan decimal expansion of e until all n-digit strings have been seen; a(n) is number of digits that must be scanned.

21, 372, 8092, 102128, 1061613, 12108841, 198150341, 1929504534

Offset: 1

Author

Michael Kleber

Keywords

• nonn
• base
• more

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

• 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.

Extensions

a(7) from Piotr Idzik, Nov 01 2011

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