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 A381085 #8 Feb 13 2025 08:47:24 %S A381085 0,0,2,4,6,56,40,40,92,624,504,10880,6688,7400,19312,113792,122400, %T A381085 3979008,2239104,2915840,5777920,56689920,55372800,110218240,78453760, %U A381085 65815552,125480960,2057036800,1776107520,137449159680,56911196160,54069370880,127085826560,63757824000,96876953600,4341200912384,2258481971200,2411472967680,5056905641984,122267833425920 %N A381085 Column k=2 of Brent's table A381083 related to prime gaps 2n. %H A381085 R. J. Mathar, <a href="/A381085/b381085.txt">Table of n, a(n) for n = 1..717</a> %H A381085 Richard P. Brent, <a href="https://maths-people.anu.edu.au/~brent/pd/rpb021t.pdf">Tables of T[r,k] and A[r,k]</a>, (1970) [unpublished]. %H A381085 Richard P. Brent, <a href="https://dx.doi.org/10.1090/S0025-5718-1974-0330017-X">The distribution of small gaps between successive primes</a>, Mathematics of Computation 28 (1974), 315-324. <a href="https://doi.org/10.2307/2005842">JSTOR 2005842</a> %F A381085 a(n) = A381083(n,2). %p A381085 See A381083. %Y A381085 Cf. A381083 (irreg. triangle), A381084 (k=1), A381086 (k=3). %K A381085 nonn %O A381085 1,3 %A A381085 _R. J. Mathar_, Feb 13 2025