A173921 Sums of rows of the triangle in A173920.

0, 1, 1, 4, 2, 5, 6, 12, 4, 7, 9, 14, 12, 19, 21, 32, 8, 11, 17, 22, 19, 27, 30, 40, 24, 35, 37, 52, 41, 57, 60, 80, 16, 19, 33, 38, 34, 41, 51, 60, 40, 51, 57, 70, 64, 81, 85, 104, 48, 67, 69, 92, 76, 99, 101, 128, 84, 111, 113, 144, 118, 151, 155, 192, 32, 35, 65, 70, 66, 73

Offset

0,4

Comments

a(n) = SUM(A173920(n,k): 0<=k<=n);

a(A000225(n)) = A001787(n);

a(A000079(n)) = A011782(n);

a(A000051(n)) = A062709(n) for n>0;

A000120(n)<=a(n)<=A000788(n); a(n)=A000788(n) iff n=2^k-1.

Links

R. Zumkeller, Table of n, a(n) for n = 0..320

Crossrefs

Cf. A000225, A001787.

Sequence in context: A160211 A035584 A241132 * A003572 A260623 A199625

Adjacent sequences: A173918 A173919 A173920 * A173922 A173923 A173924

Keyword

nonn

Author

Reinhard Zumkeller, Mar 04 2010

Status

approved