A077621 Squarefree numbers occurring more than once in A076734.

6, 10, 26, 30, 51, 66, 70, 78, 102, 122, 130, 154, 165, 174, 177, 182, 190, 210, 222, 238, 246, 266, 273, 282, 285, 291, 310, 318, 330, 345, 357, 362, 366, 370, 390, 399, 406, 418, 426, 429, 438, 455, 462, 483, 510, 518, 530, 533, 534, 546, 555, 561, 570

Offset

1,1

Comments

Primorials are a subsequence, see A077622.

Links

Amiram Eldar, Table of n, a(n) for n = 1..10000

Formula

A077618(a(n)) > 1.

Crossrefs

Cf. A002110, A005117, A076734, A077618, A077619, A077620, A077622.

Sequence in context: A382504 A351446 A323107 * A298736 A336845 A324617

Adjacent sequences: A077618 A077619 A077620 * A077622 A077623 A077624

Keyword

nonn

Author

Reinhard Zumkeller, Nov 12 2002

Status

approved