A364584 a(n) is the least number with exactly n divisors of the form 4*k+1.

1, 5, 25, 45, 441, 225, 5103, 585, 1575, 2205, 35721, 2925, 194481, 25515, 11025, 9945, 2893401, 17325, 2711943423, 28665, 127575, 178605, 480249, 45045, 275625, 972405, 121275, 266805, 18983603961, 143325, 1441237924662543, 135135, 893025, 14467005, 3189375, 225225

Offset

1,2

Links

Bert Dobbelaere, Table of n, a(n) for n = 1..200

Crossrefs

Cf. A001826, A005179, A038547, A364585.

Sequence in context: A223654 A362092 A098947 * A223222 A273789 A147176

Adjacent sequences: A364581 A364582 A364583 * A364585 A364586 A364587

Keyword

nonn

Author

Ilya Gutkovskiy, Jul 28 2023

Extensions

More terms from Bert Dobbelaere, Jul 31 2023

Status

approved