1,3

Conjecture: Given the infinite set of sequences generated from using the partial sum operator on A000594, (i.e. A000012^k * A000594, k in succession =1,2,3,...), k=23 and k=24 are the only two sequences in the set with zeros. In A128379, k = 23: (1, -1, -24, 0, 276, 300, -1748, -4300,...).

A000012^24 * A000594; (partial sum operator performed 24 times on A000594).

Cf. A000012, A000594, A128379.

Sequence in context: A004011 A056465 A056455 this_sequence A165845 A004513 A004465

Adjacent sequences: A128375 A128376 A128377 this_sequence A128379 A128380 A128381

sign

Gary W. Adamson (qntmpkt(AT)yahoo.com), Feb 28 2007