A117566 Strip A117488 of r-1 row values 1,2,5,10,20,36,65 ... A000712.

1, 2, 3, 5, 8, 14, 10, 18, 30, 49, 20, 34, 59, 94, 149, 36, 63, 104, 169, 264, 405, 65, 108, 179, 284, 445, 676, 1017, 110, 183, 294, 465, 716, 1089, 1622, 2387, 185, 298, 475, 736, 1129, 1694, 2517, 3678, 5324, 300, 479, 746, 1149, 1734, 2589, 3808, 5544, 7972

Offset

1,2

Comments

Note that the Durfee Square sequences addressed in A115994, A117488 and this triangular array can be generated using self-convolution of diagonals in the partition array A008284.

Links

Table of n, a(n) for n=1..54.

Formula

T(n,k) = A117488(n,n+k-1), 1<=k<=n . - R. J. Mathar, Jan 22 2008

Example

Row four of A117488 is 1 2 5 10 18 30 49
remove 3 terms 1 2 5 so
row four of A117566 is 10 18 30 49

Crossrefs

Cf. A000041 A008284 A115994 A117488.

Sequence in context: A096095 A041101 A041809 * A123000 A132599 A082931

Adjacent sequences: A117563 A117564 A117565 * A117567 A117568 A117569

Keyword

nonn,tabl

Author

Alford Arnold, Mar 29 2006

Extensions

More terms from R. J. Mathar, Jan 22 2008

Status

approved