%I #2 Feb 22 2020 20:57:36
%S 15,9,7,8,9,29,2,20,18,16,9,42,14,7,2,6,45,10,1,4,13,22,7,53,1,4,16,9,
%T 12,5,4,4,6,2,7,19,31,1,3,3,7,2,0,6,1,5,1,6,6,17,11,0,2,0,4,1,0,6,3,1,
%U 1,30,4,3,49,0,1,0,10,1,13,2,10,2,63,9,3,7,14,1,0,5,15,5,17,1,3,4,0,4,0,6
%N Number of digits between successive occurrences of digit 7 in decimal representation of Pi.
%Y Cf. A135088, A000796.
%K nonn,base
%O 1,1
%A Daniel Drijard (daniel.drijard(AT)cern.ch)