A306476 Numbers k, with sigma(k) >= 3k and sigma(k) divisible by 3, that are not in A204830.

10556208, 10578672, 10589904, 10612368, 10657296, 10690992, 10702224, 10747152, 10825776, 10859472, 10870704, 10881936, 10938096, 10949328, 10971792, 10983024, 11005488, 11039184, 11050416, 11095344, 11117808, 11196432, 11207664, 11252592, 11286288, 11319984

Offset: 1

Author

Giovanni Resta, Feb 18 2019

Keywords

• nonn

Comments

From an idea of Amiram Eldar. Analogous sequence to A171641. The divisors of the listed terms k cannot be arranged in three disjoint sets each of them adding to sigma(k)/3.

Crossrefs

Cf. A023197, A083207, A171641, A204830, A319186.