A156936 G.f. of the z^3 coefficients of the FP2 in the fourth column of the A156925 matrix.

-6, -242, -7382, -130472, -1594852, -15166900, -119173924, -788897224, -4270968154, -15821839894, 13226522262, 1056215331024, 14319250065624, 147391347765784, 1340374086462424

Offset

2,1

Links

Table of n, a(n) for n=2..16.

Formula

a(n) = 58*a(n-1) - 1571*a(n-2) + 26428*a(n-3)- 309755*a(n-4) + 2689810*a(n-5) - 17964865*a(n-6) + 94564560*a(n-7) - 398823930*a(n-8) + 1362709780*a(n-9) - 3799420462*a(n-10) + 8679603176*a(n-11) - 16269149542*a(n-12) + 24993226196*a(n-13) - 31349144530*a(n-14) + 31885547728*a(n-15) - 26017270869*a(n-16) + 16759251378*a(n-17) - 8320633119*a(n-18) + 3068440380*a(n-19) - 790800975*a(n-20) + 127028250*a(n-21) - 9568125*a(n-22).

G.f.: GF4(z;m=3) = z^2*(-6 + 106*z - 2772*z^2 + 76070*z^3 - 1087552*z^4 + 8632650*z^5 - 40358780*z^6 + 106452214*z^7 - 99774996*z^8 - 284430514*z^9 + 1125952500*z^10 - 1581820542*z^11 + 737716032*z^12 + 414532350*z^13 - 357790500*z^14 - 81870750*z^15 - 1275750*z^16)/((1-z)^10*(1-3*z)^7*(1-5*z)^4*(1-7*z)).

Crossrefs

Cf. A156933.

Equals fourth column of A156925.

Other columns A156934, A156935, A156937.

Sequence in context: A064382 A080358 A233826 * A231019 A254009 A072228

Adjacent sequences: A156933 A156934 A156935 * A156937 A156938 A156939

Keyword

easy,sign,uned

Author

Johannes W. Meijer, Feb 20 2009

Status

approved