S1: 1

S2: 21

S3: 2221

S4: 7221

what's S5, S6...etc?

Results 1 to 3 of 3

- Dec 30th 2005, 09:29 AM #1DecoderGuest

- Dec 30th 2005, 10:08 AM #2

- Joined
- Nov 2005
- From
- someplace
- Posts
- 14,972
- Thanks
- 5

Originally Posted by**Decoder**

about the origin of the problem.

Alternatively putting a Lagrangian Interpolating Polynomial (http://mathworld.wolfram.com/Lagrang...olynomial.html)

through the points gives S5=15641, and S6=28101.

The Online Encyclopedia of integer sequences knows nothing of this sequence.

RonL

- Dec 30th 2005, 10:42 AM #3

- Joined
- Nov 2005
- From
- New York City
- Posts
- 10,616
- Thanks
- 10