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 A021151 #16 Jul 21 2025 15:13:46 %S A021151 0,0,6,8,0,2,7,2,1,0,8,8,4,3,5,3,7,4,1,4,9,6,5,9,8,6,3,9,4,5,5,7,8,2, %T A021151 3,1,2,9,2,5,1,7,0,0,6,8,0,2,7,2,1,0,8,8,4,3,5,3,7,4,1,4,9,6,5,9,8,6, %U A021151 3,9,4,5,5,7,8,2,3,1,2,9,2,5,1,7,0,0,6,8,0,2,7,2,1,0,8,8,4,3,5 %N A021151 Decimal expansion of 1/147. %H A021151 <a href="/index/Rec#order_42">Index entries for linear recurrences with constant coefficients</a>, signature (0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1). %F A021151 G.f.: x^2*(7*x^39 + x^38 + 5*x^37 + 2*x^36 + 9*x^35 + 2*x^34 + x^33 + 3*x^32 + 2*x^31 + 8*x^30 + 7*x^29 + 5*x^28 + 5*x^27 + 4*x^26 + 9*x^25 + 3*x^24 + 6*x^23 + 8*x^22 + 9*x^21 + 5*x^20 + 6*x^19 + 9*x^18 + 4*x^17 + x^16 + 4*x^15 + 7*x^14 + 3*x^13 + 5*x^12 + 3*x^11 + 4*x^10 + 8*x^9 + 8*x^8 + x^6 + 2*x^5 + 7*x^4 + 2*x^3 + 8*x + 6)/(1 - x^42). - _Chai Wah Wu_, Jun 21 2016 %t A021151 PadLeft[First@ #, Abs@ Last@ # + Length@ First@ #] &@ RealDigits[N[1/147, 120]] (* _Bruno Berselli_, Jun 21 2016 *) %t A021151 realDigitsRecip[147] (* The realDigitsRecip program is at A021200 *) (* _Harvey P. Dale_, Jan 11 2025 *) %K A021151 nonn,cons,easy %O A021151 0,3 %A A021151 _N. J. A. Sloane_