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A259908 Triangle read by rows: Hammersley's numbers c_{j,k} arising from a formula for A085707(n,k). 0
1, 3, 5, 17, 70, 61, 155, 1143, 2317, 1385, 38227, 623753, 3243270, 7258090, 7293671, 2702765, 929569, 20454498, 147624355, 484343420, 796220487, 639139202, 199360981 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..23.

J. M. Hammersley, An undergraduate exercise in manipulation, Math. Scientist, 14 (1989), 1-23. See Eq. (52) and Table 2.

J. M. Hammersley, An undergraduate exercise in manipulation, Math. Scientist, 14 (1989), 1-23. (Annotated scanned copy)

EXAMPLE

Triangle begins:

1,

3,5,

17,70,61,

155,1143,2317,1385,

38227,623753,3243270,7258090,7293671,2702765,

929569,20454498,147624355,484343420,796220487,639139202,199360981,

...

CROSSREFS

Cf. A085707.

Diagonals are A001469, A000364.

Sequence in context: A256438 A251737 A125957 * A137460 A319908 A232238

Adjacent sequences:  A259905 A259906 A259907 * A259909 A259910 A259911

KEYWORD

nonn,tabl,more

AUTHOR

N. J. A. Sloane, Jul 07 2015

STATUS

approved

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Last modified June 19 19:11 EDT 2019. Contains 324222 sequences. (Running on oeis4.)