1. SEQUENCES & SERIES Miguel Pérez Fontenla, Nov 2009

2. 1,2,3,4,5,..... ...6,7,8,...... Natural numbers

3. 2,4,6,8,..... ...10,12,14...... Evennumbers

4. 1,3,5,7,..... ...9,11,13...... Oddnumbers

5. 4,7,10,13,..... ...16,19,22...... Multipleofthree plus one

6. 2,4,8,16,..... ...32,64,128..... Powersoftwo

7. 1,2,4,8,16,..... ...32,64,128..... Powersoftwo

8. 1,3,9,27,..... ...81,243,..... Powersofthree

9. 2,5,10,17,..... ...26,37,..... n squared plus one

10. 1,8,27,64,..... ...125,216,..... n cubed

11. 2,6,12,20,..... ...56,72,90,..... n multiplied by n minus one

12. two times n minus three divided by two

13. -1,1,-1,1,..... ...-1,1,-1,1,..... minus one to the power of n

14. 1,-1,1,-1,..... ...1,-1,1,-1,..... minus one to the power of n plus one

15. two times n divided by two times n minusone

16. and.... Other series not so easy

17. 1,0,1,0,1..... ...0,1,0,1.....

18. 1,1,2,3,5..... ...8,13,21,..... FibonacciSequence

19. 81,27,9,..... ...3,1,1/3,..... ondivided by 3 tothepowerof n minusfive

20. 2,3,5,7,11,..... ...13,17,19,23..... prime numbers

21. 0,1,4,6,8,9,10,..... ...12,14,15,16..... no prime numbers

22. 2,-4,6,-8..... ...10,-12,14,... minusonetothepowerof n plus onemultiplied by two times n

23. twothirdstothepowerof n minusfive

24. twotine 2 squaredtothepowerof n minusonedivided by four

25. andnow.... Funny series

26. a,b,d,g,k..... ...p,v,... followingthesequence 1,2,4,7,11,16,22

27. O,T,T,F,F,S,S..... ...,E,N,T One, two, three, four, five, six, seven, eight, nine, ten....

28. M,T,W,T,F..... ...S,S Weekdays

29. M,V,E,M,J..... ...S,N,U,P Planets Solar System Mercury, Venus, Earth, Mars, Jupiter, Saturn, Neptune, Uranus, Pluto

30. F,S,T,F,F,S,S..... ,E,N,T

31. J,F,M,A,M,J,J..... ...,A,S,O,N,D

32. 31,28,31,30,31,... Lengths of months in days ...30,31,31,..

33. 2,2,4,4,2,6,6,2,8,... Table of two ...8,2,10,...

34. 5,4,2,9,8,6,... Alphabetic Order In Spanish ...7,3,1

35. 2,10,12,16,17,18,19,200... ...201,202,.. In Spanish they start by the “D” letter: Dos, diez, doce, dieciseis, diecisiete,dieciocho,diecinueve,doscientos....

36. 2,3,6,16,22,23,26,32,33... ...36,42,43,46,.. In Spanish they finish with the “S” letter: Dos, tres, seis, dieciseis, veintidos, veintitres, veintiseis, treinta y dos ....