A133719 Column 4 of array in A133713.
1, 22, 226, 1371, 5901, 20097, 57813, 146427, 335742, 710677, 1408693, 2643004, 4732728, 8141238, 13524078, 21787914, 34162095, 52284504, 78303484, 114997729, 165916135, 235539711, 329467755, 454630605, 619531380, 834519231
Offset: 2
Keywords
Programs
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Maple
A133719 := proc(l) A133713(l,4) ; end proc: seq(A133719(l),l=2..30) ; # R. J. Mathar, Nov 23 2011