%I #18 Oct 03 2021 22:24:32
%S 1,3,-1,23,-16,5,165,-177,111,-27,3802,-5548,5232,-2548,502,21385,
%T -39615,49910,-36490,14385,-2375,993605,-2235440,3527745,-3441280,
%U 2035695,-672360,95435
%N Triangle read by rows: coefficients for step-by-step integration.
%H W. F. Pickard, <a href="https://doi.org/10.1145/321217.321226">Tables for the step-by-step integration of ordinary differential equations of the first order</a>, J. ACM 11 (1964), 229-233.
%H W. F. Pickard, <a href="/A002397/a002397.pdf">Tables for the step-by-step integration of ordinary differential equations of the first order</a>, J. ACM 11 (1964), 229-233. [Annotated scanned copy] See Table II.
%e Triangle begins:
%e 1;
%e 3, -1;
%e 23, -16, 5;
%e 165, -177, 111, -27;
%e 3802, -5548, 5232, -2548, 502;
%e ...
%Y Row sums = A002397.
%Y Diagonals (up to signs in some cases) include A002398, A002399, A002400, A002401, A002404.
%Y The following sequences are taken from page 231 of Pickard (1964): A002397, A002398, A002399, A002400, A002401, A002402, A002403, A002404, A002405, A002406, A260780, A260781.
%K sign,tabl,more
%O 0,2
%A _N. J. A. Sloane_, Aug 02 2015
%E a(15)-a(27) from _Robert Price_, Sep 09 2019