Sloane, N J A. Plouffe, Simon.
Encyclopedia of Integer Sequences - USA AP 1973 - 587p
0 12 558630 2
Sequences (Mathematics)
Numbers, Natural
511 SLO
Encyclopedia of Integer Sequences - USA AP 1973 - 587p
0 12 558630 2
Sequences (Mathematics)
Numbers, Natural
511 SLO