A257604 Congruentful numbers. Numbers that are not congruentfree. Complement of A253278.

5, 6, 7, 10, 12, 13, 14, 15, 18, 20, 21, 22, 23, 24, 25, 26, 28, 29, 30, 31, 34, 35, 36, 37, 38, 39, 40, 41, 42, 44, 45, 46, 47, 48, 49, 50, 52, 53, 54, 55, 56, 58, 60, 61, 62, 63, 65, 66, 68, 69, 70, 71, 72, 74, 75, 76, 77, 78, 79, 80, 82, 84, 85, 86, 87, 88, 90, 91, 92, 93, 94, 95, 96, 98, 100

Offset: 1

Author

Juri-Stepan Gerasimov, May 06 2015

Keywords

• nonn
• easy

Comments

These are the positive integers divisible by a congruent number given in A003273. - Wolfdieter Lang, May 09 2015

Examples

			10 is in this sequence because the positive integer 10 is divisible by congruent number 5.
		

Crossrefs

Cf. A003273, A253278.