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.

A076842 Numerators of sequence of fractions defined by a(1) = a(2) = 1; for n > 2, a(n) = (a(n-1)+a(n-2)+1)/a(n-2).

Original entry on oeis.org

1, 1, 3, 5, 3, 9, 29, 71, 751, 5095, 117707, 8786157, 1495204807, 869159527657, 10563805576326283, 3058448407404141530011, 21945047981309619478239602921, 78849616271246494204031567399858651677, 163732240861295155285004461265839986271194799721161
Offset: 1

Views

Author

N. J. A. Sloane, Nov 21 2002

Keywords

Examples

			1, 1, 3, 5, 3, 9/5, 29/15, 71/27, 751/261, 5095/2059, 117707/53321, ...
		

Crossrefs

Programs

  • Maple
    a := 1; b := 1; f := proc(n) option remember; global a,b; if n=1 then RETURN(a); fi; if n=2 then RETURN(b); fi; RETURN((f(n-1)+f(n-2)+1)/f(n-2)); end;