A104614 Write the natural numbers in base 11 in a triangle with k digits in the k-th row, as shown below. Sequence gives the leading diagonal.

1, 3, 6, 10, 1, 1, 8, 1, 2, 3, 5, 0, 4, 5, 10, 7, 7, 8, 1, 0, 1, 0, 1, 1, 2, 1, 1, 5, 1, 1, 8, 1, 1, 0, 2, 2, 3, 2, 2, 6, 2, 2, 10, 3, 3, 3, 3, 3, 8, 3, 4, 1, 4, 4, 6, 4, 4, 0, 5, 5, 6, 5, 5, 1, 6, 6, 7, 6, 7, 2, 7, 7, 8, 8, 8, 4, 8, 8, 0, 9, 9, 8, 9, 10, 4, 10, 10, 2, 1, 5, 0, 0, 0, 1, 9, 0, 1, 0, 2, 2, 7, 1

Offset

1,2

Comments

1

23

456

789A

10111

213141

5161718...

Links

Table of n, a(n) for n=1..102.

Mathematica

t = Flatten[ IntegerDigits[ Range[1850], 11]]; t[[Table[n(n + 1)/2, {n, 105}]]]

Crossrefs

Cf. A104606, A104607, A104608, A104609, A104610, A104611, A104612, A104613, A091425, A104615, A104616, A104617, A104618, A104619, A104620.

Sequence in context: A104617 A104618 A104616 * A133302 A104615 A194047

Adjacent sequences: A104611 A104612 A104613 * A104615 A104616 A104617

Keyword

base,nonn

Author

Robert G. Wilson v, Mar 16 2005

Status

approved