This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A056122 #24 Sep 08 2022 08:45:01
%S A056122 1,17,125,605,2255,7007,19019,46475,104390,218790,432718,814606,
%T A056122 1469650,2554930,4299130,7027834,11195503,17425375,26558675,39714675,
%U A056122 58363305,84412185,120310125,169169325,234908700,322420956,437766252
%N A056122 a(n) = (8*n+9)*C(n+8,8)/9.
%H A056122 G. C. Greubel, <a href="/A056122/b056122.txt">Table of n, a(n) for n = 0..1000</a>
%F A056122 G.f.: (1+7*x)/(1-x)^10.
%F A056122 a(n) = (362880 + 1308816*n + 1939788*n^2 + 1550548*n^3 + 740313*n^4 + 220416*n^5 + 41202*n^6 + 4692*n^7 + 297*n^8 + 8*n^9)/362880. - _Harvey P. Dale_, Mar 09 2011
%F A056122 E.g.f.: (362880 +5806080*x +16692480*x^2 +16934400*x^3 +7832160*x^4 + 1862784*x^5 +239904 x^6 +16704*x^7 +585*x^8 +8*x^9)*exp(x)/362880. - _G. C. Greubel_, Aug 29 2019
%p A056122 seq((8*n+9)*binomial(n+8,8)/9, n=0..40); # _G. C. Greubel_, Aug 29 2019
%t A056122 Table[(8n+9) Binomial[n+8,8]/9,{n,0,40}] (* _Harvey P. Dale_, Mar 09 2011 *)
%o A056122 (PARI) vector(40, n, (8*n+1)*binomial(n+7,8)/9) \\ _G. C. Greubel_, Aug 29 2019
%o A056122 (Magma) [(8*n+9)*Binomial(n+8,8)/9: n in [0..40]]; // _G. C. Greubel_, Aug 29 2019
%o A056122 (Sage) [(8*n+9)*binomial(n+8,8)/9 for n in (0..40)] # _G. C. Greubel_, Aug 29 2019
%o A056122 (GAP) List([0..40], n-> (8*n+9)*Binomial(n+8,8)/9); # _G. C. Greubel_, Aug 29 2019
%Y A056122 Cf. A056001.
%Y A056122 Cf. A093565 ((8, 1) Pascal, column m=9). Partial sums of A056001.
%Y A056122 Cf. similar sequences listed in A254142.
%K A056122 easy,nonn
%O A056122 0,2
%A A056122 _Barry E. Williams_, Jul 06 2000