

A167144


Column 0 of the matrix 4th power of triangle A167015.


4



1, 4, 14, 70, 503, 4898, 60517, 899764, 15496561, 301137820, 6483583802, 152689979223, 3896718655702, 107010852239903, 3144913162405021, 98469727935174977, 3272516761148911378, 115063890523670839944
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OFFSET

0,2


COMMENTS

This sequence equals the reversal of row 4 of A167015 (when extended infinitely to the left), and then shifted left 1 place.
In triangle T=A167015, row n of T equals the initial n terms in column 0 of matrix power T^n, reversed and with an appended '1'.
The definition of A167015 may be relaxed to allow the triangle to extend indefinitely also to the left, making each row infinite.


LINKS



CROSSREFS



KEYWORD

nonn


AUTHOR



STATUS

approved



