Number of times the digit 2 appears in the first 10^n decimal digits of sqrt(2), sometimes called Pythagoras's constant, counting after the decimal point.

A322643

Number of times the digit 2 appears in the first 10^n decimal digits of sqrt(2), sometimes called Pythagoras's constant, counting after the decimal point.

Terms

    a(0) =2a(1) =8a(2) =109a(3) =1004a(4) =9876a(5) =100436a(6) =1000208a(7) =9998091a(8) =99995645a(9) =999987069

External references