Number of times the n-th prime appears among the decimal digits of 2^(2^n) + 1, the Fermat numbers.

Terms

a(0) =0a(1) =0a(2) =1a(3) =1a(4) =0a(5) =0a(6) =1a(7) =1a(8) =2a(9) =4a(10) =9a(11) =14a(12) =21a(13) =46a(14) =112a(15) =204a(16) =374a(17) =809a(18) =1586a(19) =3237a(20) =6385a(21) =12539a(22) =25637a(23) =50603a(24) =100891a(25) =20382a(26) =40281a(27) =81405a(28) =161718a(29) =323703