Newman-Conway Sequence
The sequence 1, 1, 2, 2, 3, 4, 4, 4, 5, 6, 7, 7, ... (Sloane's A004001) defined by the recurrence 
,
It satisfies
and
References
Bloom, D. M. ``Newman-Conway Sequence.'' Solution to Problem 1459. Math. Mag. 68, 400-401, 1995. Sloane, N. J. A. SequenceA004001/M0276in ``An On-Line Version of the Encyclopedia of Integer Sequences.''http://www.research.att.com/~njas/sequences/eisonline.html and Sloane, N. J. A. and Plouffe, S.The Encyclopedia of Integer Sequences. San Diego: Academic Press, 1995.
- Quadrable
- Quadrangle
- Quadrant
- Quadratfrei
- Quadratic Congruence
- Quadratic Curve
- Quadratic Effect
- Quadratic Equation
- Quadratic Field
- Quadratic Form
- Quadratic Formula
- Quadratic Integral
- Quadratic Invariant
- Quadratic Irrational Number
- Quadratic Map
- Quadratic Mean
- Quadratic Reciprocity Law
- Quadratic Reciprocity Relations
- Quadratic Reciprocity Theorem
- Quadratic Recurrence
- Quadratic Residue
- Quadratic Sieve Factorization Method
- Quadratic Surd
- Quadratic Surface
- Quadratrix of Hippias