# A156983 (b-file synthesized from sequence entry) 1 23 2 29 3 37 4 53 5 149 6 277 7 2069 8 32789 9 65557 10 524309 11 17592186044437 12 281474976710677 13 2251799813685269 14 4503599627370517 15 2305843009213693973 16 11692013098647223345629478661730264157247460343829