Trimorphic Number

A number such that the last digits of are the same as . 49 is trimorphic since (Wells 1986,p. 124). The first few are 1, 4, 5, 6, 9, 24, 25, 49, 51, 75, 76, 99, 125, 249, 251, 375, 376, 499, ... (Sloane's A033819).

References

Sloane, N. J. A. Sequence A033819in ``The On-Line Version of the Encyclopedia of Integer Sequences.''http://www.research.att.com/~njas/sequences/eisonline.html.

Wells, D. The Penguin Dictionary of Curious and Interesting Numbers. Middlesex, England: Penguin Books, 1986.

• Pathwise-Connected
• Patriarchal Cross
• Pauli Matrices
• Pauli Spin Matrices
• Payoff Matrix
• P-Circle
• Peacock's Tail
• Peano Arithmetic
• Peano Curve
• Peano-Gosper Curve
• Peano's Axioms
• Peano Surface
• Pear Curve
• Pearls of Sluze
• Pear-Shaped Curve
• Pearson-Cunningham Function
• Pearson Kurtosis
• Pearson Mode Skewness
• Pearson's Correlation
• Pearson's Function
• Pearson Skewness
• Pearson's Skewness Coefficients
• Pearson System
• Pearson Type III Distribution
• Peaucellier Cell