Read (exponents of primes in the factorization of n!) modulo 2 and convert to decimal.

Terms

a(0) =1a(1) =3a(2) =3a(3) =7a(4) =1a(5) =3a(6) =11a(7) =11a(8) =1a(9) =3a(10) =11a(11) =23a(12) =51a(13) =43a(14) =43a(15) =87a(16) =23a(17) =47a(18) =15a(19) =95a(20) =215a(21) =431a(22) =47a(23) =47a(24) =295a(25) =423a(26) =391a(27) =783a(28) =143a(29) =287