@article{05138308,
title = {A slow-growing sequence defined by an unusual recurrence.},
journal = {Journal of Integer Sequences [electronic only]},
volume = {10},
year = {2007},
zbl = {1137.11010},
language = {en},
url = {http://dml.mathdoc.fr/item/05138308}
}
van de Bult, Fokko J.; Gijswijt, Dion C.; Linderman, John P.; Sloane, N.J.A.; Wilks, Allan R. A slow-growing sequence defined by an unusual recurrence.. Journal of Integer Sequences [electronic only], Tome 10 (2007) . http://gdmltest.u-ga.fr/item/05138308/