2024-09-12T05:59:38Z
https://oai.zbmath.org/v1/
oai:zbmath.org:2520325
0001-01-01T00:00:00
JFM
Kjellerød, A.
1937
2520325
Norwegian
None
https://zbmath.org/02520325
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Norsk mat. Tidsskrift 19, 23-25 (1937).
Om summen av rekken:
\[
S=1+\dfrac{x}{{2 \choose 1}}+\dfrac{x^2}{{4 \choose 2}}+\cdots + \dfrac{x^r}{{2r \choose r}} +\cdots = \sum_{r=0}^{\infty} \dfrac{x^r}{{2r \choose r}}.
\]
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