id:A082876 - OEIS Search Results

Search: id:A082876

Displaying 1-1 of 1 results found.

page 1

Number of prime divisors (counted with multiplicity) of numbers of form a^m + b^m + c^m + ..., where a*b*c* ... is the prime factorization of m.

+0
1

0, 2, 3, 5, 5, 2, 7, 9, 10, 3, 11, 1, 13, 5, 7, 18, 17, 4, 19, 3, 7, 7, 23, 3, 26, 6, 28, 3, 29, 4, 31, 33, 8, 5, 11, 6, 37, 7, 9, 3, 41, 5, 43, 5, 4, 7, 47, 5, 50, 8, 14, 7, 53, 5, 11, 4, 8, 9, 59, 4, 61, 9, 5, 66, 11, 4, 67, 7, 11, 11, 71, 7, 73 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`a(2) and a(6) are semiprime. Where is the next?`
	CROSSREFS	`Cf. A082813, A082814.` `Sequence in context: A139537 A111631 A118141 this_sequence A096099 A019780 A133293` `Adjacent sequences: A082873 A082874 A082875 this_sequence A082877 A082878 A082879`
	KEYWORD	`more,nonn`
	AUTHOR	`Jason Earls (zevi_35711(AT)yahoo.com), May 25 2003`

page 1

Search completed in 0.002 seconds

Last modified December 20 00:58 EST 2009. Contains 171054 sequences.

AT&T Labs Research