0,1

Also called Smarandache-Pierce chain.

C. Ashbacher, Problem 514, The Pentagon, Vol. 57, No. 1, Fall 1997, p. 36

M. Le, On Smarandache Pierce Chain, Smarandache Notions Journal, Vol. 10, No. 1-2-3, 1999, 154-155.

F. Smarandache, Properties of the numbers, ASU Special Collections, 1973.

M. L. Perez et al., eds., Smarandache Notions Journal

Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.

a(n) = 101 (10^(4n)-1)/(10^4-1).

Sequence in context: A076127 A138721 A015078 this_sequence A015041 A138120 A082521

Adjacent sequences: A031979 A031980 A031981 this_sequence A031983 A031984 A031985

nonn,easy

J. Castillo (arp(AT)cia-g.com) [Broken email address?]

More terms from James A. Sellers (sellersj(AT)math.psu.edu)