OFFSET
1,1
COMMENTS
A digit d of Pi is in this sequence iff A000796(i) = A000796(i+1), where i is the index of d in A000796. - Felix Fröhlich, Nov 01 2016
EXAMPLE
Pi=3.14159265358979323846264(33)83279502(88)41971693(99)3751058209749(44)592307816406286208(99)8628034825342(11)70679...
Therefore, this sequence starts 3, 8, 9, 4, 9, 1.
PROG
(PARI) pidigit(n) = floor(Pi*10^n) - 10*floor(Pi*10^(n-1))
terms(n) = my(k=1, i=0); while(1, if(pidigit(k)==pidigit(k+1), print1(pidigit(k), ", "); i++); if(i==n, break); k++)
/* Print initial 100 terms as follows */
terms(100) \\ Felix Fröhlich, Nov 01 2016
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Bobby Jacobs, Nov 01 2016
STATUS
approved