A006274 First differences of A006268. (Formerly M5243)

33, 46728, 102266868085272, 1069559300034650646049671038948382825526728

Offset

0,1

References

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

Links

Table of n, a(n) for n=0..3.

Jeffrey Shallit, Predictable regular continued cotangent expansions, J. Res. Nat. Bur. Standards Sect. B 80B (1976), no. 2, 285-290.

Crossrefs

Cf. A006268, A006273, A098316.

Sequence in context: A229932 A306723 A238611 * A230174 A060767 A220350

Adjacent sequences: A006271 A006272 A006273 * A006275 A006276 A006277

Keyword

nonn,frac

Author

N. J. A. Sloane.

Extensions

Definition corrected by N. J. A. Sloane, May 23 2023 using a formula suggested by R. J. Mathar, Apr 26 2007.

Status

approved