The digits of pi(n)=A000720(n) are obtained by adding pairs of adjacent digits of n.

A116070

The digits of pi(n)=A000720(n) are obtained by adding pairs of adjacent digits of n.

Terms

    a(0) =15a(1) =27a(2) =226a(3) =227a(4) =334a(5) =441a(6) =2107a(7) =3132a(8) =5172a(9) =10231a(10) =40203a(11) =50136

External references