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A000970 Fermat coefficients.
(Formerly M4386 N1846)
1
1, 7, 25, 66, 143, 273, 476, 775, 1197, 1771, 2530, 3510, 4750, 6293, 8184, 10472, 13209, 16450, 20254, 24682, 29799, 35673, 42375, 49980, 58565, 68211, 79002, 91025, 104371, 119133, 135408, 153296, 172900, 194327, 217686, 243090, 270655 (list; graph; refs; listen; history; internal format)
OFFSET

5,2

REFERENCES

P. A. Piza, Fermat coefficients, Math. Mag., 27 (1954), 141-146.

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).

LINKS

S. Plouffe, Approximations de S\'{e}ries G\'{e}n\'{e}ratrices et Quelques Conjectures, Dissertation, Universit\'{e} du Qu\'{e}bec \`{a} Montr\'{e}al, 1992.

S. Plouffe, 1031 Generating Functions and Conjectures, Universit\'{e} du Qu\'{e}bec \`{a} Montr\'{e}al, 1992.

FORMULA

G.f.: [(3x^5+2x^4+4x^3+3x^2+3x+1)(1-x)]/[(1-x^5)(1-x)^5].

MAPLE

A000970:=-(2*z**4+3*z**5+3*z**2+4*z**3+3*z+1)/(z**4+z**3+z**2+z+1)/(z-1)**5; [S. Plouffe in his 1992 dissertation.]

CROSSREFS

Sequence in context: A155290 A056685 A001296 * A155245 A155291 A155221

Adjacent sequences:  A000967 A000968 A000969 * A000971 A000972 A000973

KEYWORD

nonn

AUTHOR

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

EXTENSIONS

More terms from Sean A. Irvine (sairvin(AT)xtra.co.nz), Sep 25 2011

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Last modified February 14 08:34 EST 2012. Contains 205614 sequences.