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 A095709 Triangle of numbers obtained by reversing the first n digits of Pi and juxtaposing. 0
 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; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Table of n, a(n) for n=1..105. EXAMPLE 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; ...) MATHEMATICA Module[{nn=20, pid}, pid=RealDigits[Pi, 10, (nn(nn+1))/2][[1]]; Table[ Reverse[ Take[ pid, n]], {n, nn}]]//Flatten (* Harvey P. Dale, Aug 13 2019 *) PROG (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)), ", ") CROSSREFS Cf. A000796. Sequence in context: A130560 A088105 A030708 * A076152 A107638 A245093 Adjacent sequences: A095706 A095707 A095708 * A095710 A095711 A095712 KEYWORD base,easy,nonn,tabl AUTHOR Herman Jamke (hermanjamke(AT)fastmail.fm), Jul 07 2004 STATUS approved

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Last modified June 25 13:13 EDT 2024. Contains 373705 sequences. (Running on oeis4.)