A033645 Base 8 digital convolution sequence.
1, 1, 2, 6, 24, 120, 720, 5040, 720, 5760, 12240, 42480, 182160, 953280, 5901840, 42266160, 11803680, 96336000, 216279360, 841510080, 3798599040, 20676015360, 131653290240, 962925062400, 394959870720, 3283735057920, 7752349728000
Offset: 0
Examples
Suppose base = 3 and a(0)..a(13) are 1 1 2 1 3 7 6 20 52 6 26 104 32 162. In base 3, 14 = 112, so we convolve the last three terms with 1, 1, 2 to obtain 104*1+32*1+162*2 = 460.