a(n) is the smallest square pyramidal number with exactly n prime factors (counted with multiplicity).
A359192
a(n) is the smallest square pyramidal number with exactly n prime factors (counted with multiplicity).
Terms
- a(0) =1a(1) =5a(2) =14a(3) =30a(4) =140a(5) =1240a(6) =4900a(7) =10416a(8) =85344a(9) =173880a(10) =1801800a(11) =5559680a(12) =44608256a(13) =357389824a(14) =44870400a(15) =110099203200a(16) =2861214720a(17) =98269966080a(18) =982218617856
External references
- oeis: A359192