A169659 - OEIS

A169659

Triangle T(n,k) read by rows. Matrix inverse of A174820.

1, 3, 1, 7, 2, 1, 18, 5, 2, 1, 37, 10, 4, 2, 1, 85, 23, 9, 4, 2, 1, 171, 46, 18, 8, 4, 2, 1, 364, 98, 38, 17, 8, 4, 2, 1, 736, 198, 77, 34, 16, 8, 4, 2, 1, 1513, 407, 158, 70, 33, 16, 8, 4, 2, 1, 3027, 814, 316, 140, 66, 32, 16, 8, 4, 2, 1, 6168, 1659, 644, 285, 134, 65, 32, 16, 8, 4

(list; table; graph; refs; listen; history; text; internal format)

OFFSET

1,2

LINKS

Table of n, a(n) for n=1..76.

EXAMPLE

Table begins:

...1

...3....1

...7....2....1

..18....5....2....1

..37...10....4....2....1

..85...23....9....4....2....1

.171...46...18....8....4....2....1

.364...98...38...17....8....4....2....1

.736..198...77...34...16....8....4....2....1

1513..407..158...70...33...16....8....4....2....1

3027..814..316..140...66...32...16....8....4....2....1

6168.1659..644..285..134...65...32...16....8....4....2....1

CROSSREFS

Cf. A174820, A074587.

Sequence in context: A061782 A074625 A284877 * A091724 A016576 A073874

Adjacent sequences: A169656 A169657 A169658 * A169660 A169661 A169662

KEYWORD

nonn,tabl

AUTHOR

Mats Granvik, Paul D. Hanna, Apr 05 2010

STATUS

approved