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Search: id:A095709
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| A095709 |
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Triangle of numbers obtained by reversing the first n digits of Pi and juxtaposing. |
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+0
1
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| 3, 1, 3, 4, 1, 3, 1, 4, 1, 3, 5, 1, 4, 1, 3, 9, 5, 1, 4, 1, 3, 2, 9, 5, 1, 4, 1, 3, 6, 2, 9, 5, 1, 4, 1, 3, 5, 6, 2, 9, 5, 1, 4, 1, 3, 3, 5, 6, 2, 9, 5, 1, 4, 1, 3, 5, 3, 5, 6, 2, 9, 5, 1, 4, 1, 3, 8, 5, 3, 5, 6, 2, 9, 5, 1, 4, 1, 3, 9, 8, 5, 3, 5, 6, 2, 9, 5, 1, 4, 1, 3, 7, 9, 8, 5, 3, 5, 6, 2, 9, 5, 1, 4, 1, 3
(list; table; graph; listen)
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OFFSET
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1,1
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EXAMPLE
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3; 1,3; 4,1,3; 1,4,1,3; 5,1,4,1,3;... (reverse order of 3; 3.1; 3.14; 3.141; 3.1415; ...)
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PROGRAM
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(PARI) a(n)=if(n<1, 0, default(realprecision, n+2); floor(Pi*10^(n-1))%10); b(n)=1+binomial(1+floor(1/2+sqrt(2*n)), 2)-n; for(n=1, 120, print1(a(b(n)), ", ")
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CROSSREFS
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Cf. A000796.
Sequence in context: A130560 A088105 A030708 this_sequence A076152 A107638 A104765
Adjacent sequences: A095706 A095707 A095708 this_sequence A095710 A095711 A095712
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KEYWORD
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base,easy,nonn,tabl
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AUTHOR
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Herman Jamke (hermanjamke(AT)fastmail.fm), Jul 07 2004
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