A328866 Row sums of array A324124.

1, 3, 15, 105, 945, 4158, 75075, 579150, 34459425, 339489150, 16499172690, 1724913508500, 878428175625, 131358797955000, 252664626678750, 3891675750482520, 221643095476699771875, 208605266331011550000, 32498195069133543750, 807994071847270157850000, 125885476393804690593030

Offset

0,2

Comments

These are the quantities D_n in Luke (1952). See the table on p. 217 of his paper. We use a(7) = 579150, which is a divisor of D_7 = 4054050. For an explanation of this change, see the comments for array A324124. (This modification does not change the values of the fractions gamma_r(n)/D_n used in Eq. (1) of Luke (1952). It is needed to give a unique definition of the terms of the array A324124.)

Links

Table of n, a(n) for n=0..20.

Petros Hadjicostas, Maple program.

Yudell L. Luke, Mechanical quadrature near a singularity, Math. Comp. 6 (1952), 215-219.

Crossrefs

Cf. A002685, A002686, A324124, A328884, A328885.

Sequence in context: A338725 A295871 A293997 * A247304 A293998 A293999

Adjacent sequences: A328863 A328864 A328865 * A328867 A328868 A328869

Keyword

nonn

Author

Petros Hadjicostas, Oct 29 2019

Status

approved