Numerator of Sum_{k=1..n} 1/A045542(k).

Terms

a(0) =1a(1) =10a(2) =101a(3) =187a(4) =149a(5) =1021a(6) =33016a(7) =6845a(8) =37447a(9) =343471a(10) =217843a(11) =269387a(12) =652735a(13) =658741a(14) =84404851a(15) =594869a(16) =99801a(17) =19571431a(18) =845870737a(19) =6799977641a(20) =826494610001