0,1

Un=Pi-3-sum((-1)^k/10^k/Ak, k=0..n-1)-(-1)^n/10^n/a, An=argmin(Un), with a integer and Un*(-1)^n<0

Cf. A014013.

Sequence in context: A098105 A159524 A113034 this_sequence A093947 A115986 A085606

Adjacent sequences: A052382 A052383 A052384 this_sequence A052386 A052387 A052388

easy,frac,more,nonn

Boris Gourevitch (sai1042(AT)ensai.fr), Mar 10 2000