A280102 Engel expansion of e to the base Pi.

2, 5, 20, 89, 809, 10704, 145989, 2054864, 19686928, 128199160

Offset

0,1

Links

Table of n, a(n) for n=0..9.

Eric Weisstein's World of Mathematics, Pierce Expansion

Wikipedia, Engel Expansion

Example

e = Pi/2 + Pi^2/(2*5) + Pi^3/(2*5*20) + Pi^4/(2*5*20*89) + Pi^5/(2*5*20*89*809) + ...

Crossrefs

Cf. A232325.

Sequence in context: A262172 A258830 A002484 * A366452 A277686 A115082

Adjacent sequences: A280099 A280100 A280101 * A280103 A280104 A280105

Keyword

nonn,more

Author

G. C. Greubel, Dec 25 2016

Status

approved