cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

Showing 1-1 of 1 results.

A296224 Decimal expansion of the limiting ratio of terms in A296223.

Original entry on oeis.org

3, 6, 5, 1, 4, 4, 0, 0, 0, 7, 8, 8, 4, 2, 6, 3, 1, 0, 2, 8, 6, 0, 9, 0, 8, 8, 3, 8, 8, 3, 6, 6, 1, 1, 5, 6, 6, 2, 1, 0, 9, 9, 1, 7, 9, 0, 0, 6, 0, 5, 3, 2, 3, 8, 8, 7, 1, 7, 8, 0, 2, 9, 0, 3, 3, 0, 3, 1, 8, 2, 0, 0, 4, 6, 7, 1, 8, 8, 0, 6, 1, 5, 1, 3, 6, 5
Offset: 1

Views

Author

Clark Kimberling, Dec 10 2017

Keywords

Comments

See A296000 for a guide to related sequences and limiting ratios.

Examples

			3.651440004884...
		

Crossrefs

Programs

  • Mathematica
    mex[list_] := NestWhile[# + 1 &, 1, MemberQ[list, #] &];
    a[0] = 1; a[1] = 3; b[0] = 2;
    a[n_] := a[n] = Sum[a[k]*b[n - k - 1], {k, 0, n - 1}] - 1;
    b[n_] := b[n] = mex[Flatten[Table[Join[{a[n]}, {a[i], b[i]}], {i, 0, n - 1}]]];
    Table[a[n], {n, 0, 200}]  (* A296223 *)
    Table[b[n], {n, 0, 20}]
    N[Table[a[n]/a[n - 1], {n, 1, 200, 10}], 200];
    RealDigits[Last[t], 10][[1]] (* A296224 *)

Formula

Equals lim_{n->oo} A296223(n)/A296223(n-1).
Showing 1-1 of 1 results.