A362456 Records in A362451.

1, 2, 4, 68, 191, 382, 2772, 5698, 19448, 30406, 146903, 887873

Offset

1,2

Links

Table of n, a(n) for n=1..12.

Index entries for sequences related to Gilbreath conjecture and transform

Mathematica

A362456[upto_]:=Module[{d=DivisorSigma[1, Range[upto]], r=1, f}, Join[{r}, Table[If[(f=First[d=Abs[Differences[d]]])>r, r=f, Nothing], upto-1]]]; A362456[10000] (* Paolo Xausa, May 07 2023 *)

Crossrefs

Cf. A362451, A362457.

Sequence in context: A018364 A100603 A374235 * A301818 A054920 A062061

Adjacent sequences: A362453 A362454 A362455 * A362457 A362458 A362459

Keyword

nonn,more

Author

N. J. A. Sloane, May 07 2023

Extensions

a(9)-a(12) from Paolo Xausa, May 07 2023

Status

approved