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A160036
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Let p(n) denote the n-th digit of pi, and let e(n) denote the n-th digit of e. Then define a(n) = abs(p(n)*e(n+1) - p(n+1)*e(n)).
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0
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19, 27, 31, 38, 22, 7, 10, 28, 34, 28, 7, 27, 63, 28, 33, 4, 0, 9, 4, 6, 12, 4, 40, 4, 9, 11, 13, 7, 11, 31, 44, 30, 12, 8, 40, 20, 21, 58, 28, 7, 8, 6, 21, 27, 54, 45, 15, 18, 36, 5, 25, 47, 46, 8, 36, 9, 18, 18, 18, 4, 11, 44, 59, 7, 6, 14, 32, 56, 36, 12, 12, 18, 18, 14, 6, 24, 8, 32
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| Absolute values of determinants taken on corresponding pairs of digits of pi and e.
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EXAMPLE
| a(1) = abs(3*7 - 1*2) = 19 (i.e., the determinant taken on the first pair of digits of pi and e).
a(2) = abs(1*1 - 7*4) = 27.
a(3) = abs(4*8 - 1*1) = 31.
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CROSSREFS
| Cf. A001113, Decimal expansion of e, and A000796, Decimal expansion of Pi
Sequence in context: A043165 A043945 A152013 * A032701 A006626 A029510
Adjacent sequences: A160033 A160034 A160035 * A160037 A160038 A160039
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KEYWORD
| nonn,base
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AUTHOR
| Don Love (moptop35(AT)hotmail.com), Apr 30 2009
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