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A104866 Initial and final digits in the partition of decimal expansion of Pi. 7
3, 5, 0, 5, 9, 9, 8, 0, 6, 4, 4, 0, 2, 7, 5, 9, 0, 3, 2, 1, 4, 5, 5, 2, 0, 9, 2, 0, 9, 5, 3, 8, 5, 6, 7, 3, 7, 7, 1, 7, 5, 1, 2, 6, 0, 9, 0, 1, 0, 7, 9, 2, 3, 4, 1, 5, 1, 1, 0, 9, 5, 9, 0, 2, 5, 3, 4, 6, 1, 1, 7, 8, 7, 5, 9, 0, 5, 9, 2, 0, 9, 3, 3, 0, 1, 8, 9, 5, 9, 4, 9, 1, 5, 5, 7, 2, 5, 0, 4, 8 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Start with decimal expansion of pi: s0=3,1,4,1,5,9,2,6,5,3,5,8,9,7,9,3,2,3,8,4,6,2,6,4,3,3,8,3,2,7,9,5,0,2,8,8,4,1,9,7,1,6,9,3,9,9,3,7,5,1,0,5,8,2,0,9,7,4,9,4,4,5,... Divide s0 to the sections with the same final digits: s={3,1,4,1,5,9,2,6,5,3}, {5,8,9,7,9,3,2,3,8,4,6,2,6,4,3,3,8,3,2,7,9,5}, {0,2,8,8,4,1,9,7,1,6,9,3,9,9,3,7,5,1,0}, {5,8,2,0,9,7,4,9,4,4,5},... Then A104865(n) = length of s(n): 10,22,19,11,... A104866(n) = initial/final digits of s(n): 3,5,0,5,...

LINKS

Table of n, a(n) for n=1..100.

CROSSREFS

Cf. A104865, A104867, A104868, A104869, A104870, A104871.

Sequence in context: A243967 A144541 A100609 * A165723 A257407 A224932

Adjacent sequences:  A104863 A104864 A104865 * A104867 A104868 A104869

KEYWORD

nonn,base

AUTHOR

Zak Seidov, Mar 29 2005

STATUS

approved

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Last modified June 18 07:06 EDT 2019. Contains 324203 sequences. (Running on oeis4.)