1,1
Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.
Sequence in context: A045087 A119086 A002601 this_sequence A008527 A007584 A009924
Adjacent sequences: A020492 A020493 A020494 this_sequence A020496 A020497 A020498
nonn
David W. Wilson (davidwwilson(AT)comcast.net)
Almost certainly finite; no other terms below 25000000. Search extended to 3000000000 by James Van Buskirk without finding any more terms. - John Robertson (Jpr2718(AT)aol.com)
Search completed in 0.002 seconds