A332313 Numbers k such that k, k + 1 and k + 2 have the same number of divisors in Gaussian integers.

23824, 38574, 52974, 62224, 71406, 105424, 110574, 191824, 201616, 209424, 240174, 249775, 282896, 285102, 297774, 326574, 340974, 375824, 393424, 407824, 440656, 451024, 496174, 509776, 553774, 587536, 599632, 600174, 606032, 623824, 628974, 631376, 667024, 672174

Offset

1,1

Links

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

Example

23824 is a term since 23824, 23825 and 23826 each have 36 divisors in Gaussian integers.

Mathematica

Flatten[Position[Partition[DivisorSigma[0, Range[3*10^5], GaussianIntegers -> True], 3, 1], {x_, x_, x_}]] (* after Harvey P. Dale at A005238 *)

Crossrefs

Cf. A005238, A062327, A332312, A332314.

Sequence in context: A011254 A226002 A066234 * A237691 A185991 A251904

Adjacent sequences: A332310 A332311 A332312 * A332314 A332315 A332316

Keyword

nonn

Author

Amiram Eldar, Feb 09 2020

Status

approved