1,2

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).

T. R. Van Oppolzer, Lehrbuch zur Bahnbestimmung der Kometen und Planeten, Vol. 2, Engelmann, Leipzig, 1880, p. 23.

W. G. Bickley and J. C. P. Miller, Numerical differentiation near the limits of a difference table, Phil. Mag., 33 (1942), 1-12 (plus tables).

Cf. A002554.

Sequence in context: A100089 A151598 A003787 this_sequence A002198 A163576 A145408

Adjacent sequences: A002552 A002553 A002554 this_sequence A002556 A002557 A002558

nonn

N. J. A. Sloane (njas(AT)research.att.com).