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Search: id:A099539
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| A099539 |
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Sum of the first n decimal places of sqrt(2). |
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+0
2
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| 4, 5, 9, 11, 12, 15, 20, 26, 28, 31, 38, 41, 41, 50, 55, 55, 59, 67, 75, 75, 76, 82, 90, 98, 105, 107, 111, 113, 113, 122, 128, 137, 145, 145, 152, 160, 165, 171, 180, 186, 193, 194, 202, 209, 214, 217, 224, 230, 239, 243, 251, 251, 258, 261, 262, 269, 275, 281
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Cf. A099538 for version of this sequence resulting from including all digits of sqrt(2) and not just the digits after decimal point.
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FORMULA
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a(n)=A099538(n+1)-1
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EXAMPLE
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Decimal places of sqrt(2) are 41421356237... so sums are 4, 4+1, 4+1+4, 4+1+4+2,... which gives 4, 5, 9, 11, ...
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CROSSREFS
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Cf. A099538, A099534-A099537, A039918, A046974, A046975 for analogous sequences based on other constants.
Sequence in context: A096808 A067261 A001161 this_sequence A110603 A010416 A134921
Adjacent sequences: A099536 A099537 A099538 this_sequence A099540 A099541 A099542
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KEYWORD
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base,easy,nonn
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AUTHOR
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Mark Hudson (mrmarkhudson(AT)hotmail.com), Oct 22 2004
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