A033834 Number of proper factorizations of the numbers with a record number of proper factorizations.

0, 1, 2, 3, 4, 6, 8, 11, 15, 18, 20, 28, 29, 30, 37, 46, 51, 56, 63, 76, 97, 104, 108, 117, 170, 211, 288, 381, 391, 466, 483, 661, 718, 736, 782, 842, 906, 1096, 1260, 1385, 1396, 1712, 1767, 2115, 2178, 2342, 3078, 3443, 3680, 3929, 5287, 5412, 5446, 5652

Offset

1,3

Links

Amiram Eldar, Table of n, a(n) for n = 1..235 (terms 1..118 from T. D. Noe, calculated by E. R. Canfield et al.)

E. R. Canfield, P. Erdős, C. Pomerance, On a problem of Oppenheim concerning Factorisatio Numerorum, J. Number Theory 17 (1983) 1-28, Table 1, column "number of factorizations" - 1.

Crossrefs

Records in A001055 (see also A033833). - N. J. A. Sloane, Jun 12 2009

Cf. A028422.

Sequence in context: A353864 A303663 A117995 * A127419 A262160 A132217

Adjacent sequences: A033831 A033832 A033833 * A033835 A033836 A033837

Keyword

nonn

Author

Jeff Burch

Extensions

0 term prepended and sequence extended by T. D. Noe, May 18 2012

Status

approved