# A144364 (b-file synthesized from sequence entry) 1 1 2 11 3 31 4 53 5 331 6 377 7 983 8 1499 9 2609 10 3329 11 6637 12 6997 13 19937 14 34987 15 157961 16 173699 17 256661 18 1349923 19 1616359 20 1993333 21 2199833 22 5794969 23 6906869 24 12204431 25 14223073 26 20666551 27 168499997 28 4819002127 29 7331752277 30 8259275501