Expansion of Product_{m>=1} (1 + x^m)^22.

Terms

a(0) =1a(1) =22a(2) =253a(3) =2046a(4) =13134a(5) =71368a(6) =341275a(7) =1473494a(8) =5848810a(9) =21628002a(10) =75261384a(11) =248403586a(12) =782547909a(13) =2365168542a(14) =6887441198a(15) =19393122562a(16) =52959869787a(17) =140631776582a(18) =363943223941a(19) =919706094494