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Sequence E.T. cetera (Posted on 2005-04-05) Difficulty: 3 of 5
Call me a "simple Simon", but I think this one hurts. Find the next 4 digit number in the sequence, and explain.

2084 1816 1979 1816 2106 2329 1943 2247 2106 2084 2106 2188 2329 2061 2329 2084 1943 2084 2188 1979 2247 1943 2247 1979 2084 2084 2188 2084 1943 2061 2329 2106

See The Solution Submitted by Larry    
Rating: 3.3333 (6 votes)

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Some Thoughts Tracking this | Comment 5 of 11 |

Each 4-digit number represents a decimal digit and the sequence is that of the digits in pi. These are the first 32 digits of pi, and unfortunately, the 33rd is a zero, not present in the first 32 digits.  I don't know of any sequence that the representations follow:

1 1816
2 1943
3 2084
4 1979
5 2106
6 2247
7 2061
8 2188
9 2329

The reference to pi is in "simple Simon", who met a pie man. Both "E.T." and Call Me seem to refer to telephoning, as in "E.T. phone home". So perhaps the sequence of 4-digit encodings of the digits has something to do with telephone numbers. I can't think of anything for hurts except it's a homophone for Hertz, a measure of cycles per second.  Perhaps the numbers refer to frequencies.

I know that the push-button phones' buttons have specific pairs of frequencies that are combined to make the tone you hear when a specific button is pressed--one for the column and one for the row on the keypad, but I don't see a commonality by row or column in the above number assignments for the digits, although the numbers do go down before proceeding to the next row on the keypad.

Trying to go down the middle column of the keypad the numbers above give 1943, 2106, 2188--which is not an arithmetic progression.

  Posted by Charlie on 2005-04-06 13:20:39
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