A005620 Spiral sieve using Fibonacci numbers.

1, 2, 4, 5, 7, 17, 25, 40, 63, 99, 156, 249, 397, 538, 1019, 1637, 2434, 3989, 6847, 10634, 17845, 28827, 46584, 75299, 121741, 196862, 318375, 514947, 832952, 1347429, 2179785, 3526456, 5705275, 9230503, 14934216

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn

References

• N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

Links

• Sean A. Irvine, Table of n, a(n) for n = 1..500
• H. W. Gould, Some sequences generated by spiral sieving methods, Fib. Quart., 12 (1974), 393-397.
• Index entries for sequences generated by sieves

Extensions

More terms from Chris Deugau (deugaucj(AT)uvic.ca), Dec 24 2005

Corrected by T. D. Noe, Oct 25 2006