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A033641
Base 4 digital convolution sequence.
3
1, 1, 2, 6, 2, 8, 18, 62, 36, 160, 392, 1496, 1176, 5664, 14856, 61560, 5664, 20520, 102600, 313464, 123120, 539184, 1514952, 5207160, 3569088, 15498360, 43342056, 164591976, 145524528, 682642512, 1966450584, 8092803816, 1365285024
OFFSET
0,3
EXAMPLE
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.
CROSSREFS
Sequence in context: A375805 A365260 A368522 * A153190 A010240 A369994
KEYWORD
base,nonn
STATUS
approved