Numbers that are product of a second hexagonal number (A014105) and a square pyramidal numbers (A000330) in at least two ways.
A306122
Numbers that are product of a second hexagonal number (A014105) and a square pyramidal numbers (A000330) in at least two ways.
Terms
- a(0) =0a(1) =105a(2) =300a(3) =855a(4) =1155a(5) =2940a(6) =13860a(7) =14700a(8) =17850a(9) =20790a(10) =22230a(11) =27300a(12) =33930a(13) =70125a(14) =73920a(15) =87780a(16) =114400a(17) =116025a(18) =135135a(19) =145530a(20) =157080a(21) =195000a(22) =213150a(23) =235290a(24) =304590a(25) =347655a(26) =381150a(27) =431340a(28) =451044a(29) =471975
External references
- oeis: A306122