Second elements of the pairs listed in A134514.

Terms

a(0) =21a(1) =221a(2) =2221a(3) =5461a(4) =22221a(5) =222221a(6) =640204a(7) =960306a(8) =904186a(9) =2222221a(10) =22222221a(11) =58873535a(12) =222222221a(13) =2222222221a(14) =9367217930a(15) =6652125007a(16) =8419783524a(17) =8315731222a(18) =9908590176a(19) =22222222221a(20) =222222222221a(21) =483200160032