A186329 Adjusted joint rank sequence of (f(i)) and (g(j)) with f(i) before g(j) when f(i)=g(j), where f and g are the pentagonal numbers and the hexagonal numbers. Complement of A186328.

2, 4, 6, 8, 10, 12, 14, 17, 19, 21, 23, 25, 27, 30, 32, 34, 36, 38, 40, 42, 45, 47, 49, 51, 53, 55, 58, 60, 62, 64, 66, 68, 70, 73, 75, 77, 79, 81, 83, 86, 88, 90, 92, 94, 96, 98, 101, 103, 105, 107, 109, 111, 114, 116, 118, 120, 122, 124, 127, 129, 131, 133, 135, 137, 139, 142, 144, 146, 148

Offset

1,1

Links

Table of n, a(n) for n=1..69.

Example

First, write
1..5...12....22.....35......  (pentagonal)
1....6....15....28.......45.. (hexagonal)
Then replace each number by its rank, where ties are settled by ranking the pentagonal number before the hexagonal:
a=(1,3,5,7,9,11,13,15,16,....)=A186328
b=(2,4,6,8,10,12,14,17,19,...)=A186329.

Mathematica

(See A186328.)

Crossrefs

Cf. A186328, A186330, A186331.

Sequence in context: A329832 A329939 A063459 * A062417 A240114 A076828

Adjacent sequences: A186326 A186327 A186328 * A186330 A186331 A186332

Keyword

nonn

Author

Clark Kimberling, Feb 17 2011

Extensions

Terms corrected by Clark Kimberling and R. J. Mathar, Jun 07 2011

Status

approved