A144080 Positions of hexagonal pyramidal numbers in the EKG sequence.

1, 14, 19, 46, 85, 155, 233, 350, 494, 659, 878, 1163, 1460, 1828, 2260, 2726, 3271, 3873, 4564, 5321, 6151, 7032, 8044, 9151, 10337, 11636, 13010, 14504, 16111, 17789, 19669, 21619, 23663, 25902, 28230, 30736, 33308, 36114, 39039, 42111, 45341, 48721, 52281, 56009

Offset

1,2

Links

Michael De Vlieger, Table of n, a(n) for n = 1..405 (a(n) <= 43892391.)

Example

The hexagonal pyramidal number 9500 is located at position 9151 in the EKG sequence.

Crossrefs

Cf. A002412, A064413.

Sequence in context: A349421 A241199 A092768 * A006576 A349262 A083247

Adjacent sequences: A144077 A144078 A144079 * A144081 A144082 A144083

Keyword

nonn

Author

Parthasarathy Nambi, Sep 09 2008

Status

approved