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A095711
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Triangle of numbers obtained by reversing the first n digits of e and juxtaposing.
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0
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2, 7, 2, 1, 7, 2, 8, 1, 7, 2, 2, 8, 1, 7, 2, 8, 2, 8, 1, 7, 2, 1, 8, 2, 8, 1, 7, 2, 8, 1, 8, 2, 8, 1, 7, 2, 2, 8, 1, 8, 2, 8, 1, 7, 2, 8, 2, 8, 1, 8, 2, 8, 1, 7, 2, 4, 8, 2, 8, 1, 8, 2, 8, 1, 7, 2, 5, 4, 8, 2, 8, 1, 8, 2, 8, 1, 7, 2, 9, 5, 4, 8, 2, 8, 1, 8, 2, 8, 1, 7, 2, 0, 9, 5, 4, 8, 2, 8, 1, 8, 2, 8, 1, 7, 2
(list; table; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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EXAMPLE
| 2; 7,2; 1,7,2; 8,1,7,2; 2,8,1,7,2;... (reverse order of 2; 2.7; 2.71; 2.718; 2.7182;...)
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PROG
| (PARI) a(n)=if(n<1, 0, default(realprecision, n+2); floor(exp(1)*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
| Cf. A001113.
Sequence in context: A090986 A195726 A095194 * A102886 A204382 A072981
Adjacent sequences: A095708 A095709 A095710 * A095712 A095713 A095714
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KEYWORD
| base,easy,nonn,tabl
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AUTHOR
| Herman Jamke (hermanjamke(AT)fastmail.fm), Jul 07 2004
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