A046374 Odd numbers with exactly 4 palindromic prime factors (counted with multiplicity).

81, 135, 189, 225, 297, 315, 375, 441, 495, 525, 625, 693, 735, 825, 875, 1029, 1089, 1155, 1225, 1375, 1617, 1715, 1815, 1925, 2401, 2541, 2695, 2727, 3025, 3537, 3773, 3993, 4077, 4235, 4545, 4887, 5157, 5895, 5929, 6363, 6655, 6795, 7575, 8145, 8253

Offset

1,1

Links

Andrew Howroyd, Table of n, a(n) for n = 1..1000

Crossrefs

Intersection of A033620 and A046317.

Cf. A046406.

Sequence in context: A186463 A371846 A046317 * A153259 A369977 A207050

Adjacent sequences: A046371 A046372 A046373 * A046375 A046376 A046377

Keyword

nonn,base

Author

Patrick De Geest, Jun 15 1998

Extensions

Offset changed by Andrew Howroyd, Aug 14 2024

Status

approved