A033641 Base 4 digital convolution sequence.

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

Author

David W. Wilson

Keywords

• base
• nonn

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.