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

Author

Reinhard Zumkeller, Mar 04 2010

Keywords

• nonn

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.