A278842 - OEIS

A278842

a(n) = permanent M_n where M_n is the n X n matrix m(i,j) = Bell(i+j).

1, 2, 55, 27748, 344594008, 136380529541352, 2157772538315935462248, 1668027050325234150218003699928, 75373026050211759045605399079260651909904, 234016759373014155226647943608719679545651260629498624

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OFFSET

0,2

LINKS

Table of n, a(n) for n=0..9.

MATHEMATICA

Flatten[{1, Table[Permanent[Table[BellB[i+j], {i, 1, n}, {j, 1, n}]], {n, 1, 12}]}]

CROSSREFS

Cf. A000110, A203227.

Sequence in context: A134501 A210928 A210932 * A307025 A037176 A045819

Adjacent sequences: A278839 A278840 A278841 * A278843 A278844 A278845

KEYWORD

nonn

AUTHOR

Vaclav Kotesovec, Nov 29 2016

STATUS

approved