A119506 The e-th digit of e where the digit value of 0 is interpreted as decimal 10.

7, 1, 2, 8, 7, 8, 2, 8, 7, 8, 8, 2, 2, 8, 8, 2, 7, 1, 2, 1, 8, 8, 7, 8, 1, 8, 1, 2, 1, 2, 7, 8, 8, 7, 8, 2, 1, 1, 2, 1, 7, 8, 1, 8, 2, 1, 8, 2, 2, 2, 2, 2, 2, 1, 8, 2, 8, 8, 2, 8, 1, 8, 7, 1, 1, 7, 8, 8, 1, 8, 8, 1, 8, 1, 2, 1, 2, 8, 1, 2, 2, 8, 2, 1, 2, 1, 8, 7, 2, 1, 8, 2, 7, 2, 2, 8, 8, 8, 7, 1, 8, 7, 1, 8, 8

Offset

1,1

Comments

The numbers in this sequence are 1,2,7,8.

Conjecture: this sequence is non-repeating and infinite.

Links

Table of n, a(n) for n=1..105.

M. Ripa and G. Morelli, Retro-analytical Reasoning IQ tests for the High Range, 2013.

Formula

e = 2.718281828... Let the i-th digit of e be the digit of e in the i-th position. Then the e-th digit of e is the digit of e in the position corresponding to the value of the i-th digit.

Example

The digit of e in the first position is 2 and the digit of e in the second position is 7, the first term in the table.

Prog

(PARI) g(n)=a=Vec(Str(exp(1)*10^9990)); for(x=1, n, v=eval(a[x]); if(v==0, print1(a [v+10]", "), print1(a[v]", ")))

Crossrefs

Cf. A001113 (e).

Sequence in context: A318353 A354639 A273984 * A304149 A305489 A305089

Adjacent sequences: A119503 A119504 A119505 * A119507 A119508 A119509

Keyword

base,nonn

Author

Cino Hilliard, May 27 2006

Status

approved