0,1

F. Smarandache, "Collected Papers", Vol. II, Tempus Publ. Hse., Buharest, Romania, 1996.

F. Iacobescu, Smarandache Partition Type and Other Sequences, Bull. Pure Appl. Sciences, Vol. 16E, No. 2 (1997), pp. 237-240.

F. Smarandache, Sequences of Numbers Involved in Unsolved Problems, Hexis, Phoenix, 2006.

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

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

F. Smarandache, Collected Papers, Vol. II

F. Smarandache, Sequences of Numbers Involved in Unsolved Problems.

a(n) = A007908(n)*(1 + 10^A058183(n)) = (n + a(n - 1)*10^L(n)/(1 + 10^(n*L(n - 1) - (10^L(n - 1) - 1)/9)))*(1 + 10^((n + 1)*L(n) - (10^L(n) - 1)/9)) where L(n) = floor[log10(10n)] - HenryBottomley (se16(AT)btinternet.com), Nov 17 2000

Sequence in context: A045981 A090507 A067105 this_sequence A078269 A015009 A068326

Adjacent sequences: A019521 A019522 A019523 this_sequence A019525 A019526 A019527

nonn

R. Muller