A046372 Odd numbers with exactly 2 palindromic prime factors (counted with multiplicity).

9, 15, 21, 25, 33, 35, 49, 55, 77, 121, 303, 393, 453, 505, 543, 573, 655, 707, 755, 905, 917, 939, 955, 1057, 1059, 1111, 1119, 1149, 1267, 1337, 1441, 1565, 1661, 1765, 1865, 1915, 1991, 2101, 2181, 2191, 2271, 2361, 2391, 2471, 2611, 2681, 2757, 2787

Offset

1,1

Links

Table of n, a(n) for n=1..48.

Crossrefs

Cf. A046315, A046404.

Sequence in context: A046337 A359596 A046315 * A025045 A107987 A031879

Adjacent sequences: A046369 A046370 A046371 * A046373 A046374 A046375

Keyword

nonn,base

Author

Patrick De Geest, Jun 15 1998

Status

approved