Numbers k such that d(k) < d(k - 1) and d(k) < d(k + 1), and d(k) is also a record for this type of number where d(k) is the number of divisors of k.

A369155

Numbers k such that d(k) < d(k - 1) and d(k) < d(k + 1), and d(k) is also a record for this type of number where d(k) is the number of divisors of k.

Terms

    a(0) =5a(1) =9a(2) =51a(3) =153a(4) =351a(5) =3249a(6) =6579a(7) =19551a(8) =47151a(9) =122451a(10) =246975a(11) =393471a(12) =3292289a(13) =10792495a(14) =15270849a(15) =25770879a(16) =58967271a(17) =60642945a(18) =242340175a(19) =481701375a(20) =5122147185a(21) =6644739375a(22) =6971026699a(23) =21061868751a(24) =92330654625a(25) =213089528575

External references