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Alexa, ask OEIS
From OeisWiki
Bob Lyons has developed an Alexa Skill that allows Amazon Echo users to access the OEIS via their Echo. The name of the Alexa skill is “OEIS-Skill.” To use it, you must first enable the skill in the Alexa app on your smartphone/tablet.
Using the OEIS-Skill: Alexa, ask OEIS for ...
Using the OEIS-Skill, you can ask for a well-known integer sequence by name or description as follows:
- Alexa, ask o. e. i. s. for the prime numbers
- Alexa, ask o. e. i. s. for the Fibonacci sequence
- Alexa, ask o. e. i. s. for the digits of Pi
- Alexa, ask o. e. i. s. for the powers of two
You can also ask for a random nice sequence:
- Alexa, ask o. e. i. s. for a nice sequence
You can ask for a sequence by A-number:
- Alexa, ask o. e. i. s. for sequence A123456
Note: The A-number must be spoken character by character; for example, say A123456 as follows: A one two three four five six
You can also search for a sequence by terms. For example:
- User: Alexa, ask o. e. i. s. to search by terms.
- Alexa: What are the first few terms separated by commas?
- User: Two comma three comma five.
- Alexa: The terms so far are 2, 3 and 5. What are the next few terms separated by commas?
- User: Seven comma eleven comma thirteen.
- Alexa: The terms so far are 2, 3, 5, 7, 11 and 13. What are the next few terms separated by commas?
- User: No more.
- Alexa: Found 440 sequences matching those terms. Would you like to hear the first sequence?
- User: Yes.
- …
When searching by terms, please note the following:
- Currently, Alexa can not reliably recognize more than three integers at a time. That is why the skill uses a dialog mode when searching by terms, such that the user says one to three integers at a time.
- Say each term in the same manner that Alexa would say the term. For example, say 47 as "forty seven"; say 123 as "one hundred twenty three"; etc.
- The word "comma" must separate terms. For example, if the terms are 2, 8 and 10, then say "two comma eight comma ten".
- Use the word "minus" rather than "negative" to say a negative term; for example, say "minus five" for −5; say "minus twenty two" for −22; etc.
Note: The OEIS-Skill does a poor job at saying the mathematical notation in a sequence name; you can read the sequence information in the Alexa app on your smartphone/tablet.
If you have any feedback and/or questions about the OEIS-Skill, then please send an email to: fibonacciproducts (at) yahoo.com