a(n) = (A022013(n) - 173)/210.

Terms

a(0) =422a(1) =1355a(2) =4074a(3) =5460a(4) =31242a(5) =329316a(6) =353648a(7) =1038255a(8) =1246060a(9) =1440679a(10) =4593664a(11) =6382389a(12) =6669205a(13) =6773694a(14) =8748381a(15) =9343041a(16) =10085055a(17) =10711252a(18) =10819136a(19) =12181959a(20) =12804411a(21) =13683806a(22) =14044105a(23) =15616253a(24) =19232028a(25) =20795482a(26) =21014272a(27) =25076295a(28) =26366476a(29) =27457318