Denominators of a companion to the Bernoulli numbers.

Terms

a(0) =1a(1) =2a(2) =2a(3) =3a(4) =6a(5) =15a(6) =30a(7) =35a(8) =70a(9) =105a(10) =210a(11) =1155a(12) =2310a(13) =5005a(14) =10010a(15) =15015a(16) =30030a(17) =255255a(18) =510510a(19) =1616615a(20) =3233230a(21) =969969a(22) =1939938a(23) =22309287a(24) =44618574a(25) =37182145a(26) =74364290a(27) =111546435a(28) =223092870a(29) =3234846615