A051455 (Terms in A029623)/2.

1, 1, 4, 1, 1, 7, 13, 12, 1, 20, 25, 1, 10, 45, 24, 1, 1, 13, 50, 112, 161, 154, 98, 40, 1, 63, 162, 273, 315, 252, 138, 1, 16, 225, 435, 588, 567, 390, 60, 1, 660, 1023, 1155, 957, 1, 19, 111, 396, 1683, 2178, 2112, 825, 319, 84, 1, 130, 507, 3861, 4290, 1144, 403, 1

Offset

0,3

Links

Table of n, a(n) for n=0..61.

Example

1;
1;
4,1;
1;
7,13,12,1;
20,25,1;
10,45,24,1;
1;
13,50,112,161,154,98,40,1;
63,162,273,315,252,138,1;
16,225,435,588,567,390,60,1;
660,1023,1155,957,1;

Maple

for n from 0 to 12 do
    for k from 0 to n do
        a := A029618(n, k) ;
        if type(a, 'even') then
            printf("%d, ", a/2) ;
        end if;
    end do:
    printf("\n") ;
end do: # R. J. Mathar, Jul 08 2015

Crossrefs

A029623, A029618.

Sequence in context: A232968 A119673 A144447 * A346875 A289511 A158687

Adjacent sequences: A051452 A051453 A051454 * A051456 A051457 A051458

Keyword

nonn,easy,tabf

Author

James A. Sellers

Status

approved