A selection of a(n) values for sequence a036704 n a(n) 1: 9 10: 349 100: 31,757 1,000: 3,144,725 10,000: 314,190,877 100,000: 31,416,240,789 1,000,000: 3,141,595,797,869 10,000,000: 314,159,296,779,497 100,000,000: 31,415,926,850,054,729 999,999,995: 3,141,592,625,315,439,093 999,999,996: 3,141,592,631,598,698,993 999,999,997: 3,141,592,637,881,878,521 999,999,998: 3,141,592,644,165,098,369 999,999,999: 3,141,592,650,448,223,941 1,000,000,000: 3,141,592,656,731,409,109 1,000,000,001: 3,141,592,663,014,609,245 1,000,000,002: 3,141,592,669,297,774,161 1,000,000,003: 3,141,592,675,581,006,833 1,000,000,004: 3,141,592,681,864,162,401 1,000,000,005: 3,141,592,688,147,345,113