t(n^2) is a square and sets a new record for such squares, where t(n) = (sigma(n)-n)*omega(n); or t(n)= A001065(n)*A001221(n).

A063777

t(n^2) is a square and sets a new record for such squares, where t(n) = (sigma(n)-n)*omega(n); or t(n)= A001065(n)*A001221(n).

Terms

    a(0) =1a(1) =3a(2) =49a(3) =114a(4) =290a(5) =1266a(6) =3026a(7) =4587a(8) =8642a(9) =14949a(10) =21504a(11) =47976a(12) =74535a(13) =79922a(14) =102818a(15) =112960a(16) =172658a(17) =280226a(18) =632018a(19) =662546a(20) =693794a(21) =791858a(22) =969698a(23) =1516322a(24) =1758962a(25) =2128898a(26) =2184626a(27) =2298242a(28) =2414738a(29) =2594882

External references