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A108063 Triangle, read by rows, where T(n,k) = A006498(n+1) - A106408(n,k). A006498 are the central numbers of A106408. 0
0, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, -1, 0, -1, 1, 2, -1, 0, 0, -1, 2, 4, -1, 1, 0, 1, -1, 4, 6, -2, 1, 0, 0, 1, -2, 6, 9, -4, 1, -1, 0, -1, 1, -4, 9, 15, -6, 2, -1, 0, 0, -1, 2, -6, 15, 25, -9, 4, -1, 1, 0, 1, -1, 4, -9, 25, 40, -15, 6, -2, 1, 0, 0, 1, -2, 6, -15, 40, 64, -25, 9, -4, 1, -1, 0, -1, 1, -4, 9, -25, 64, 104, -40, 15, -6, 2, -1, 0, 0, -1, 2, -6 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,16

COMMENTS

Each entry is +- an entry in A006498. Each column and each diagonal contains either A006498 or -A006498. For n>2, each row contains an alternating-signed version of a subsequence of A006498, both in forward and reverse order. For n>2 each column contains an alternating-signed version of a contiguous subsequence of A006498 in reverse order.

LINKS

Table of n, a(n) for n=1..102.

CROSSREFS

Cf. A006498, A106408.

Sequence in context: A061670 A236412 A236263 * A164846 A026729 A109466

Adjacent sequences:  A108060 A108061 A108062 * A108064 A108065 A108066

KEYWORD

sign,tabl

AUTHOR

Gerald McGarvey, Jun 02 2005

STATUS

approved

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Last modified February 18 05:48 EST 2018. Contains 299298 sequences. (Running on oeis4.)