

A090898


Index of first occurrence of the first n digits of e in the decimal expansion of Pi.


2



6, 28, 241, 11706, 28024, 33789, 1526800, 73154827, 246890641, 6026562951, 45111908393, 1016065419627, 8838254734240
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OFFSET

1,1


COMMENTS

The next term would be the position in the decimal expansion of pi at which the string "271828182" begins.


REFERENCES

C. A. Pickover, "The Mathematics of Oz", p. 337


LINKS

Table of n, a(n) for n=1..13.
David G. Andersen, The PiSearch Page.
Peter TrĂ¼b, 22.4 trillion digits of pi
Eric Weisstein's World of Mathematics, Pickover's Sequence


EXAMPLE

a(1) = 6 because the first digit of e, 2, in the decimal expansion of pi is in position 6
a(2) = 28 because '27' appears in the decimal expansion of Pi beginning at the 28th position, .141592653589793238462643383'27'95028841971693993751


CROSSREFS

Cf. A000796, A001113.
Sequence in context: A206708 A336565 A216413 * A134872 A281003 A049603
Adjacent sequences: A090895 A090896 A090897 * A090899 A090900 A090901


KEYWORD

nonn,base,more


AUTHOR

Michael Joseph Halm, Feb 26 2004


EXTENSIONS

a(9)a(13) from Dmitry Petukhov, Jan 15 2020


STATUS

approved



