A061500 Integer part of arithmetic mean of distinct nonzero numbers that can be formed from the digits of n.

1, 2, 3, 4, 5, 6, 7, 8, 9, 5, 6, 9, 12, 15, 18, 21, 24, 27, 30, 11, 9, 12, 15, 18, 21, 24, 27, 30, 33, 16, 12, 15, 18, 21, 24, 27, 30, 33, 36, 22, 15, 18, 21, 24, 27, 30, 33, 36, 39, 27, 18, 21, 24, 27, 30, 33, 36, 39, 42, 33, 21, 24, 27, 30, 33, 36, 39, 42, 45, 38, 24, 27, 30, 33, 36, 39

Offset

1,2

References

Amarnath Murthy, An Interesting result in Combinatorics, Mathematics and Informatics Quarterly, 3/99, vol. 9, Bulgaria.

Links

Table of n, a(n) for n=1..76.

Example

a(10) = floor(1+10)/2 =5. a(12) = 9: the distinct numbers formed by the digits of 12 are 1, 2, 12, 21. The arithmetic mean of these numbers is 36/4 = 9.

Crossrefs

A061487, A061499.

Sequence in context: A363372 A028900 A081596 * A051796 A257296 A093030

Adjacent sequences: A061497 A061498 A061499 * A061501 A061502 A061503

Keyword

base,nonn

Author

Amarnath Murthy, May 06 2001

Extensions

Corrected and extended by Asher Auel, May 14, 2001

Name corrected by Sean A. Irvine, Feb 18 2023

Status

approved